Hi, I'm the owner of the site. Most rolls are 20 strips, and are between $10-20. As far as I know, Moda rolls are at least 30 for 40 strip rolls, so mine are comparable in price. My fabrics are an assortment of fabric brands, and I use a lot of fabrics you'll find at Joann in my rolls. You can't buy my rolls anywhere else. You can read the "about me" section for more info. I own both
http://jellyrollfabrics.com and
http://jellyrollfabric.net (I built the first one myself, and then had the second done with a professional shopping cart site) You can use either, though.
The deal one poster was referring to is right now, if you buy any 4 rolls from my store, I'm giving away 2 free assorted rolls - these are "grab-bag" rolls with 20 different fabrics. Plus free shipping. The code for that is FREEROLLS and it's only good on jellyrollfabric.net for another few days.
To mods: I'm just trying to address some questions here, this is my first post. Not trying to advertise!
Liz