Well they can't just raise the price as they please since it is set by the NFA. What would more likely is happen is the wait would increase by a lot.
I can see them saying they need to "adjust it for inflation"
That comes out to about $3000-$4000 for a tax stamp.
Shot placement is everything! I would rather take a round of 50BMG to the foot than a 22short to the base of the skull.
all 25 of my guns are 45/70 govt, 357 mag, 22 or 12 ga... I believe in keeping it simple