Manley Stingray question

Hi Folks,

I have been far removed from audio world for about a year and a half. I learned I was going to have my first child, so money got scarce. Well, he learned to crawl about two weeks ago, and now every time I look at my amp I see shattered tubes and a crying kid in its future. I am thinking of selling it. It is a first generation (I think) Manley stingray, with ul and triode switches, sub out, and loop/rec out/in. No headphone amp, I-dock, or remote. I bought it new on audiogon about three years ago for, maybe, $900? I was looking at prices and they seemed way high, even for the older model that I have. What happened? Is my sleep deprived brain forgetting what I paid for it (quite possible)? Did something change that I am missing? Thanks for any info.