Insurance works on a new for old basis. If you have one of the old boxy TV's for example and its stolen from the house and you put in a claim. You will get the modern equivalent of that TV because no one makes boxy TV's anymore, flat screens are the new standard. If it was top of the line back in its day then you get a modern top of the line TV to replace it.
All I can say is you have a really good policy.
Over here in Finland policies are based on "current value". You crash your old car, you get what a similar old car would cost at "Honest Joe's Used Autos", NOT a brand spanking new one.
The value is largely based on mathematical depreciation formulas rather than any real market value. The depreciation for home electronics is especially high, 30-50% PER YEAR, depending on company and policy.
In essence this means everything electronic in your house is worth essentially zero if it wasn't bought yesterday. Which is essentially true, seen any old TVs at the store lately?. The fact that they are not giving out 3-year old TVs for free is not the insurance company's problem, it's your problem.
The problem is that my slightly old TV or phone or whatever still has value to me as a usable item even though it does not have monetary value in the "I could sell this for $$$" sense. And the insurance company pays out monetary value.
Things are better for expensive things that are expected to have longer service lives, like major kitchen appliances and furniture, but the things we care care about are essentially worthless under a normal home insurance policy.
My comics collection? Worthless. Most people just binned those 80's X-Men, and that's the standard the insurance company uses to value them.
My laserdisc collection? Worthless.
My DVD collection? Worthless.
My video game collection? Worthless.
My book collection? Worthless.
And yes, my gaming collection? WORTHLESS.
My gun collection is actually worth something, because I specifically asked it to be included AND they understood that the damn things have value (though I wouldn't like to test that clause in today's climate).
Just because you paid money for something does not mean it has value.
I bought a Big Mac yesterday. How much is it worth today? Even if I hadn't eaten it? Even if I had frozen it? Even if there is a crazy Big Mac collector out there who pays top dollar for vintage Big Macs?
In real life, the general value of yesterday's Big Mac is ZERO.
The same applies to much of what we buy. We are living in a culture of disposable things.
Why do I bother to have such a crappy policy then? Mostly because it covers major disasters like a fire at "full value", i.e. in total loss cases they pay out the policy amount without bothering to itemize the losses.
Small claims are generally not worth making. After the depreciation and deductibles, they generally don't pay out anything.
Yes, I did ask about a separate policy for collectibles. You'd end up paying something around 10% of appraised value in yearly fees, quickly making such a thing pointless for stuff that can actually be replaced with money.