Yep, theres a lot of stuff cheaper elsewhere...
Craft stores... beads, hose and wire, etc...
The makeup dept... tools! clippers, files and emory boards, putty spatulas, brushes... Just take your wife/GF so you don't look like a wierdo!
Big Box stores... auto depts usually have cheaper paints and fillers... plastic bins, tons of other things if you look around.
Yardage stores... cloth, glues, thread...
Radio shack type stores... wire, coax, resistors...
Theres a ton of stuff out there if you have the time to look for it!