Why limit yourself to trikes? They are no more comfortable than recumbent bikes.

WalMart has sold a recumbent bike, but I don't see it listed currently. By all accounts, it is higher quality than your basic $100 dept store bike but then again it costs more than twice that. http://www.walmart.com/ip/20-Hyper-I...-Bike/10983235

I'm not aware of any really crappy 'bents on the USA market. Sun products have good reputations but are generally heavy.
As with all bikes, you get what you pay for and you buy what you want. Comparable-quality prices are higher largely because 'bents are made and sold in relatively small numbers.