The problem with wanting a discontinued gun is that if you don't buy it now, you are not likely to find one in the future. I have had a few guns that have been discontinued while I was waffling about buying one; the Sig 232 and Sig Mosquito are both on that list, and I kick myself every time I take a trip to the gun store for not having bought them when I could. I also should have spent a little more effort in trying to locate a Ruger GP100 in .327 when they were being made. Again, still kicking myself over it. However, Ruger brought back the SP101 in .327, so they might bring back the GP100 (though they have indicated to me that they have no such intention). You never know if manufacturers will bring a product back. If you buy it, and don't care for it you will be able to resell it. There is likely somebody out there who probably did not do what you did; buy the gun when they could. And they will likely pay a decent price to get one.
I've never owned a Browning, but the one's I've played with at gun stores always seem to be well made. I have never heard anything bad about Brownings. The worst I have heard was when a guy said his A-Bolt was "nothing special." I believe Browning's shotguns are made by Miroku in Japan. At least that was the story a few years ago. The Japanese aren't exactly known for shoddy products anymore, especially if the product is actually being manufactured in Japan (as opposed to China and ASEAN member nations where a lot of Japanese companies have relocated their production). If Browning has discontinued carrying a particular model of shotgun, that may be because the original manufacture has discontinued making it or exporting it. The reasons for that are myriad, including trade restrictions, profit margin differences, production capacity being reallocated, etc. Maybe it is still being manufactured and exported, but for any number of reasons, Browning has decided against running that model in their catalogue. In any case, changes in business are difficult, so they don't usually happen unless there is a reason, and those reasons are usually based on economic or regulatory factors.
Also, companies will keep a crappy gun on the market for no other reason but to revise their design and try to rescue the reputation of the brand. The UTS-15 had some serious flaws originally, and the reputation of unreliability persists even with new generations that supposedly fixed prior reliability issues. And that is not exactly a cheap gun ($850-$1100, depending on where you buy it). Companies try to refrain from simply pulling an item if there is a problem with it, as it makes them look like snake-oil salesmen who are unwilling to address flaws in their products and just back out when people get wise to their scam. My point is that it is not likely that the product was discontinued for reliability or quality issues.
In short; buy the gun if you have the money.
