SS is one of the worst "finishes" for showing wear. Its soft and easily scratched. The bead blasted finish seems to show it less than the polished finish though for some reason, but it still shows.
Bead blasting can be pretty abrasive, depending on what you use and how you use it. If done right, it usually doesnt bother the logos and lettering. Use the wrong stuff, and/or dwell on one spot to long, and you are likely to have different results. Same goes for repetitive use. If youre always "touching up", its going to start to show.
While I have a couple of SS guns, Im not a big fan of them, and dont really use them to much.