I guess I'd have to read the guy's post for myself.
If the issue is price, heck yeah, he's got a genuine concern. I'm not rich myself and I understand 100%. My work truck got hit in the rear last year. I like that truck. I've got it broken in and built up how I want it. Insurance got the thing fixed for $800 and insurance paid it. Would I be out if it was totalled? Yes. But it's a truck.
If he's bemoaning the loss of his Glock as somehow reducing him other than monetarily, well, that's kind of silly. I like all my guns, they are worn in to match my hand and I know how they shoot. But if I were to lose one forever, I could replace it easily enough. The only guns I have which I would care enough to not lose I wouldn't carry on a boating trip.
Would I b*tch about losing one of my Sigs overboard? Yes. But I would go buy another one. There's nothing magical about a tool.
At the end of the day, it's a Glock. There's thousands and thousands of them. They were mass produced in a factory to meet a price point. Not a one of them is probably worth more than a new one.