This will completely depend on how much you like it.
At $1000, it’s probably the most valuable thing worth robbing in your home.
It’s not going to hold value like a nice $1000 hunting shotgun or even a $500 pump action Mossberg.
If you think you need more than 5 12 ga. shells to defend your home, or you just want that shotgun, go for it. Given that Gunbroker has them new for $4,000 you may consider the used one a “good deal.” It’s an extreme niche firearm.
Consider that a $4,000 double barrel or over and under might sell used for … well, wait a decade you may double your money when you sell.
In my opinion, an all-around pump shotgun is a used Remington 870 Wingmaster, Ithaca Model 37, Mossberg model 500, or Winchester model 12. There is a good chance you can sell it next year for what you paid for it if you sell before hunting season.
If you want a semi-auto… look at the Beretta a300, Franci Affinity,
Retay, but I personally put my money into a Fabarms L4s Initial Hunter. I expect you can sell all of these for what you pay for them in 5 years.
In my option, the more it looks like something on a video or video game, the more “tactical” stuff hanging on it, the less value it has unless you are actually a competitive shooter in this style of shotgun.