First I've heard of a boycott, although I do remember some uproar when S&W signed that agreement.
I bought a S&W 625 about 2 years ago. After some tinkering and several applications of LokTite, it has become quite reliable. It's a lot of fun to shoot a wheelgun in .45 ACP!
That being said, I don't so much have brand loyalty. As I've mentioned before in other posts, I want guns that are reliable and shoot where I point them. I don't crave a new Winchester or a new S&W, i crave a new lever action .357 carbine, or I crave a single-action .22 revolver. There are exceptions... only Browning made the BAR (the real one, not that semi-auto toy). Only Thompson made the Thompson.
I set out with criteria, look at all the possible fits, and make my selection based on that. I can't think of a time in my life that I've set out to buy a gun based primarily on who made it. Sure, the manufacturer is an influencing factor, but only after other criteria are satisfied.
I will say that I was greatly annoyed by the initial problems I had with my 625, every single one of which stemmed from a threaded assembly working itself loose. Three times the gun became nonfunctional in the first 2 months I had it! The ejector rod worked loose, and I was unable to open the cylinder. The mainspring tension screw worked loose, and the gun stopped hitting the primer with enough force to set them off. The cylinder release latch worked loose, and I couldn't open the cylinder. Come ON, S&W! Buy a little LokTite!
Sorry... I seem to have wandered off in a rant.