Generally speaking, I don't agree with the single origin espresso, which is not really taste enough, eccept Monssoon of India or maybe few of others.
For the traditional espresso drinkers, normally the single origin espresso does not taste great. but, for the beginers of espresso drinker like Illy of Italy as of 100% arabica beans, such espresso is soft enough to be accepted, and maybe also good for some people which prefer the soft coffee drink.
Based on such understanding, we designed our coffee menu with the very famous Italian blend of Molinari as the standard espresso for the reason that there are traditional espresso drinkers in our cafe. If one like and possible, it is possible to add more choices of SINGLE OPRIGIN espresso for the people who prefer it.
It means that there is market for it, but not large.