Asian demographic - Indian, Chinese, Japanese, Filipino etc? I did see a large number of gas-powered trikes in India etc. I like the utilitarian nature of the trike. I'd probably ride one around a town where biking is friendly and roads are wide - like Davis Ca etc.
I've seen a few around Manhattan. Moms touting kids on the Westside MUP, or souped-up trikes carrying auto parts, of hardware bits.