Nor will anyone else care....they'll all get slung in the bin! Your 060 and Picasso and PPC cards...the lot! 
Hundreds of years is a very optimistic view. IC's fail eventually under normal use. These "hoarders" are probably doing Amiga preservation a very large favour. 
Regarding hoarding, there's more than enough unwanted Amiga's out there anyway, so I can't say I have anything against them. Also, how do you define a hoarder? Is a person who owns every Amiga model (13 I think?) a hoarder? I'd call those people collectors not hoarders. There's more than enough Amiga's out there for everyone, so I don't see why you should have such strong negative feelings against them.
Definition of collectors are owning a single different module of the Amiga for the purpose of history or collectible reason. Definition of a hoarder are owning 30 of the same Amiga module and never using them..just for the purpose of...hoarding or keeping.
For example when ever I have fever of owning Commodore 64 again...I go to eBay and think hard if I want the C64s, C64, C128 or C128D module. When I am satisfied with my pick...I buy ONE SINGLE module of the Commodore 64 and that is that. It is what I did with the Apple IIgs for example. I bought only ONE Apple IIgs...not went and bought 50 Apple IIgs nor went and bought 10 Apple IIgs, 20 Apple IIc, 15 Apple II e, first I have no space...second one Apple II is more than enough...I wouldn't be able to use the other ones..and they do the same thing anyways...so why should I keep them? Someone out there would like to own one...