No worries - Good luck to you if you can get that much for them.
It's just hititing home in the last couple of months that things we have traded on here for a few years have suddenly become more expensive when for the most part all we want to do is use them.
It's like anything I suppose but it gets to the point where you're scared to do anything with them. It's like old records for example because you're scared to play them for destroying the value of them.
I gave away 15 years worth of MBUK a year or so ago (some people have dumped theirs in the skip) and recently we've had someone selling copies for a tenner each. Not his fault, just a different point of view.
As I say, fair play to you.