I'd like to try an X-Mart bike for experimentation. I've been trying thrift stores and Craig's List, but that is just too much hit or miss, usually miss. X-Mart is always has the same bikes up for sale, so I don't have to be patient. Also pricewise, it would be very economical as far as other experiments have gone. One element of utilitarian cycling is to not to haved to constantly worry about having your bike stolen. If the bike is inexpensive enough that problem is eliminated.
My only problem is that there isn't a WalMart near me. It's not fair. People in Australia and Canada seem to have them. That just ain't fair! They are foreigners.