Maybe if HK stops making them... Then maybe in 5 to 10 years it could be, depending on demand. It is tough to gauge collectability in a modern production firearm. I still say buy one. Shoot it, take good care of it, and enjoy. Perhaps it will be collectable, if not, you have a fun gun to enjoy.
Most collectibles are significantly older than 5-10 years. It's more likely that you won't see it become worth the financial investment in your lifetime. Most people who find a gun to be collectible, are those that have inherited them. They typically don't become collectible during their normal life expectancy. I couldn't agree more with the idea of get it and shoot it if you like the gun. If you want a financial investment in your gunsafe, get some gold bars or investment bonds and put them next to your shooters.
I mean a 10 round mag for a pistol rifle? Come on HK. WTF is that? Semi auto hand guns carry more rounds than that.
You are pointing your fingers in the wrong direction. ATF import regulations are in play, not some ignorance of the market from HKs perspective.
It's not the unavoidable things that people are complaining about it's the fact that HK put little effort into making the thing attractive to the buyers. Personally I think if they'd have made the effort to make the thumb hole stock remotely comfortable to hold, shipped it with a top rail, and offered 40/9mm conversion kits they would have dominated the market even during the ban. The simple fact of the matter though is that the stock feels like you're trying to shoot a 2x10, the factory sights aren't that great and rails are stupid over priced, and even when ammo was still cheap .45 was expensive.
Honestly, I think that the USC stock is one of the best attempts at making a thumbhole comfortable, while still being ambidextrous (being a lefty, I have to appreciate that aspect). If you think that one is bad, you really need to try an older gray SL8. As for rails, not everyone everyone wants them. .45? While I certainly agree that it shouldn't be the only option, HK did do their homework on that one. The U.S. market has a love affair with the .45acp cartridge. If they made this for the European market, it would definitely be in 9mm. Also, the 45 can always be scaled down for .40 and 9mm. when people do their conversions.