Quilted wallets do take a lot of time. I like your pattern too. Is it your pattern or a purchased one?
As for how much to charge? When I was making them, they were similar to yours, tri-fold with a place for lots of card slots and a checkbook section, I charged $30 and people paid that. I'm in the Detroit, MI, area where the economy is pretty tight but ladies still like their wallets. Don't undersell yourself or you'll get to where you hate making them for such a small amount of money.....just not worth your time for only $5.