I don't know if it only bad choice of words, but this looks like a mistake / incorrect statement to me. Bitcoin was not Scrypt. Litecoin was.
I've been thinking in the past to acquire an USB miner. At first I wanted it for hobby mining, then as a collectible, now I've given up completely the idea. And this is my answer to OP: I think that they can be seen as collectibles, but only with a limited value which may not grow much over time, unless you know how to monetize them (and open some sort of museum, for example).