I have to disagree guys. Take class cars as an example. Of course 67 camaro's and A/C cobras are worth big money.... but even flops like the Edsel are worth BIG money now if they're in perfect unrestored condition. Hell, they were ugly cars then, they're ugly cars now but the condition is what makes them valuable.
BTW, thinking that something will never be valuable because it's "just" a whatever is what keeps them from being valuable. Thinking that something is valuable JUST because it is a whatever is what makes things valuable (sort of like the supply and demand pricing on classic cars).
I can only yell you what I would do, I would drain all of the fluids from that blaster and stick in the corner of the garage completely pristine under a cover. Only pull it out every few months to check on it and make sure everything is still mint. I would then go back on craigslist and buy a beater blaster for a couple hundred bucks and go play on that one.
Then in 10 years or so, when blasters start getting more scarce, list that thing on Ebay and reap the few thousand dollar premium it will bring. Just think, there will never be any more NEW blasters. You may have one of a VERY small number of them simply because people they were the "just" blasters.