Nothing is wrong with collecting test equipment simply because it's beautiful, with no pressing need to actually use it. There's a spectrum of valid reasons, from 'I must have X, because my livelihood depends on it', right through to the technological equivalent of stamp collecting. There's no 'wrong' when you're spending your own money on something you like, and it does no one any harm.
Personally I buy gear for reasons right across the range. Much of it is for specific projects. Some I acquire because when I was young and poor, access to such things was just a dream. Some things because they're cool, and _maybe_ will be useful for something I have in mind to do in future. Remember that with obscure test gear, opportunity can be a strong argument - you may never see another one so easily available to you. A recent example being the HP Q-meter I bought. http://www.eevblog.com/forum/buysellwanted/(au)-ebay-hewlett-packard-34401a-multimeter/msg192715/#msg192715
'Stamp collecting' equipment buying is something I try to avoid. But every now and then enthusiasm overcomes that resolution. So what?
As for Aspergers, a grief counselor I was seeing a few years ago suggested I might fit this syndrome. But I don't know... Not that it's important, but I suspect there's an overlap of Aspie syndrome, and what you get when an intelligent person just decides to try and minimize the number of standard cognitive biases they suffer from. See the Wiki list here: http://en.wikipedia.org/wiki/List_of_biases_in_judgment_and_decision_making
The problem is, most people's thinking is so fundamentally faulty, that anyone who tries to do better ends up seeming 'strange' to the 'normal' person. When someone figures out in their pre-teens that a lot of common assumptions, beliefs and social mores are irrational garbage, and tries to make a habit of constructing a more sensible personal philosophy, there's going to be some visible effects.
Rephrased, I believe several of the indicators of Aspergers can be the result of innate character, OR the result of deliberate choice of approach to life.
An interesting doc I found on Asperger's, saved here: http://everist.org/misc/Discovering_Asper.htm