I got my Beretta 92FS just before the ban, with a pair of 15-round mags. I was also able to pick up an extra pair of 15-round mags for about $25 each, IIRC. I went to a gun show after the ban went into effect, and those same 15-round mags were $50+ each, with factory 20-round mags going for about $120 each.

I also remember competing in my one and only shooting competition, a more-or-less informal speed shooting match during the ban, organized by the state's RKBA association. The only requirement was that you had to use a high-capacity pistol and mags. Fun times. Saw a shooting demonstration with a guy using an AK47 to obliterate some watermelons and there were attempts to use a bowling ball cannon to launch a bowling ball over a large hill. FYI, they were successful.