dlc, welcome. I use two labs for my printing, aside from proofs, and a print now and then mostly to keep my inc from clogging . . . the cost of buying prints, almost any size is much better than printing them yourself - i have found. that said, you do lose some control, but i cant make an 11x14 metalic print for $1.99!!!
I use Bay photo for custom fine art stuff, and if I need volume or I know that my prints will print exactly as I see them, adorama pixs is a good choice.
I choose to be a photographer and not a printer, some argue I'm wrong, but it works for me. . . BTW, my proof printing is done on a dye-sub printer - an olympus 440. I have a couple lazer printers, an three ink jets, the inc jets seldom are used.
Tony