Among the many unintended consequences of opening the espresso Pandora's box in the midst of what was formerly a retail coffee store was the immediate demotion of coffee not made fresh, to order, and expressly for you (the best definition of espresso I know of) to a much lower status.
The drip coffee in question, at that time (from the mid 80's to the early 90's) was pretty awesome stuff, too - think Guatemala Antigua San Sebastian, top Kenya auction lots, Sigri Estate Papua New Guinea - brewed strong and fresh on the best commercial equipment and sold within minutes of brewing.
It was immediately obvious to me that the worst part of the perceived higher value of "espresso" - which of course really means "espresso-flavored milk drinks" was that it was the lowly drip coffee that was the real connoisseur's choice, as it was the only option for those interested in the actual taste of coffee rather than coffee as an ingredient. Denigration of drip coffee and its customer base might have seemed savvy given the higher profit margins for espresso drinks, but catering to the caffe latte trade also meant kissing the whole bean coffee business goodbye, and with it any consumer base capable of appreciating the farmer and roaster's hard work.
The question even back then was how to upgrade the perceived value of coffee-by-the-cup to that of the milk drinks, and the obvious answer was and still is that said coffee needs to also be brewed fresh to order each time. Even back then the technology to deliver excellent coffee by the cup quickly existed (WMF, Wittenborg and other hi-tech brewers, as well as lowly but functional units like the FilterFresh machine that were clear precursors to today's K-Cups and the like), but it was held captive to awful brands of roasted coffee or franchise operations.
The Bunn Trifecta
Today's single-cup market
From what I can tell the commercial marketplace, at least in the U.S., is very limited. There are machines that require you to purchase coffee from exclusive suppliers (Nespresso, Keurig, Filterfresh and the like), but the only "open source" machines that I know of are Curtis's Gold Cup brewer, which I haven't had any experience with and the Bunn Trifecta. The Trifecta is an excellent brewer, and I love the fact that it's available in both a $3000 commercial version and a $550 home brewer that makes all the sense in the world for those who can afford it.
On the consumer side it's a fragmented market, with Keurig the clear volume leader. Ken Davids at Coffee Review has an excellent review of current options for the Keurig:
He's only testing the standard K-Cup machine here, and Keurig's new Vue unit seems to have addressed the major drawbacks of the older unit, increasing brew temperature to up to 197 degrees F and coffee dosage and consequent cup size to 12-18 ounces from the standard Keurig's 6, as well as offering recyclable plastic capsules. All that seems to be missing at this point is a craft roaster (or consortium of craft roasters) willing to put some truly great origin coffees into this format in order to have push-button coffee that rivals the best conventionally-brewed cups.
On the other hand, as Davids points out in his article, for less than the cost of a typical Keurig or Nespresso brewer you can own an Aeropress (my first choice) or Clever Dripper, decent burr grinder and a scale and brew great locally-roasted (better still, home-roasted) coffee with complete control of the variables and total freedom of choice with regard to coffee, degree of roast and freshness.
The daily cup: ritual or convenience?
Taking the long view, the rapid penetration of espresso into the mass market over the past 25 years has been a total game-changer in terms of consumer expectations of freshness, speed of preparation and ability to customize what one drinks. There's no going back.
The ideal cup of coffee would be ultra-fresh, ground and brewed to order in seconds, perfectly balanced in flavor and aroma, with plenty of variety of choices, consistent in quality - and affordable to drink and enjoy on a daily basis. At this point I think it behooves any medium-sized or larger roaster-retailer to have in their cupping room a Keurig, a Nespresso machine and both home and commercial models of the Trifecta and to regulary test their preferred in-store drip-strength options against these brewers not only for flavor but for speed and ease of preparation, consistency, throughput, user-friendliness and - last not least - suitability for consumer use to replicate the in-store coffee at home easily and affordably.
The Aeropress - the best single-cup home brewer - being used commercially
P.S. a nice late entrant to the home single-cup brewer world is what is essentially a porcelain Clever Dripper from Bonavita: