I've bought one yesterday, sealed and allegedly mint. It cost me an arm and the seller seems quite, hmm, unreliable

So it is a risky buy, for an object i don't even know if i really paid it at a cheap/ normal/ high price. I'm mad
It was risky but i told myself to just go for it.
I saw another one today (again, mint and sealed), the seller was asking for an offer and i contacted him.
No answer yet, he may be flooded with offers, or my offer was just ridiculous for him and he doesn't bother to answer. But i won't give up like this^^
And that is why i ask for an estimation, it could 1) Confirm if my 1st buy was nice or not and 2) allow me to be more accurate with the 2nd buy
[OFFTOPIC]
I actually already have 1, unsealed, and another one going on... and hey, by the way you have not answered my PM :p
[OFFTOPIC]