Where are you getting $10 a roll for film???? Certainly not on the B&H website -

Kodak Ektar 100 is $4.60/roll for 120 and $5.25/roll for 35mm. Even Portra 800 is only $7.59/roll in 120.

http://www.bhphotovideo.com/c/search...524+4291384683

Ilford Delta 100 is $4.19/roll in 120, $5.69/roll for 35mm. FP4+ is $4.25/roll in 120, $5.75 for 35mm.

http://www.bhphotovideo.com/c/search...524+4291407242