No most home or PRO studios do not use protools some do but not most. In NYC yes most likely, LA yes most likely, some ATL and rest of the places i have bin in not as much. I bin in a lot of studio that do not use DIGI at all, all i can say is there is a lot of cracked software out there in studios now

. The talks i here from most is that we are sick of paying for software that do not work. I can tell you this most studio i bin in to over the pass year or so is logic 15%, cubase 20%, nuendo 10%, protools LE 25%, protools HD 20%, 10% a bunch of other software. I mite be off a bit but you get the point these numbers use to be different but times are changing.