I still like to use a good quality fabric on the back but only use fabrics that have been on sale (as compared to 'for sale', LOL)...I am super frugal. I won't pay full price for backing fabric.
Someone here on the board mentioned that they use Connecting Threads fabric that is discounted/on sale for under $3.00 yd, great idea. Means you have to keep your eyes open on the sight quite often to get that kind of deal, but worth the few extra minutes And then buy yards of it.
warm quilt hugs, sue in CA