@mremery2366, Hi that's a great question Pretreating is only required if you are printing onto shirts, but if you are printing onto film for transfers pretreating will not be necessary.
Hello @Steven Susac our printers vary in cost $18k-$36k depending on what your needs are for more information please contact one of our DTG specialist at www.omniprintonline.com/omniprint-direct-to-garment-printers