I think subconsciously, some think that 35mm is the closest thing to digital film can get.. Shooting mentality changes drastically from 35 to MF to LF, in many photographers. I've noticed that I like more of my shots on a roll of 120 than 35. That's just me, of course and there is a good reason for it.. When I am shooting 35mm, I shoot more in bulk. But sometimes that's the only way you can get a shot.
I think grain is fine, depending on your subject.. I've seen 135 Delta 3200 blown up to 11X14 and loved it.