Been carrying 9mm Shields for the last several years. Don't even own any 10+ mag guns. Couple of days ago I ordered an M&P FDE 17 rd 9mm. been looking at these for years. I figured I shouldn't take any more chances and ordered one of off Gunbroker. Also ordered 4 17rd factory mags for this from TombStone Tactical. I don't know what the prices on these were BEFORE all this but I paid $37.99 each.
You did fine, don't sweat a few bucks here and there. I bought an SR9 during the Obama years via the same reasoning...get it while you can. (Since then I've added a few more "high-cap" handguns. I'm glad I did and you will be too.)