Whats up with price for wow accs?

Hey Guys, Something i have thought of for a while. I think this was back in vanilla or TBC. I remember like having just one 60-70 or two or something could sell for like 300$. Like it was much more worth than it was now. In cata 1 85 were not even worth like 60$, Do you guys think that accounts will be worth more now in MoP if they are 90 as it takes a while to get to 90? Because in cata i could see people on sythe sell like rogues with legendary daggers and rare mounts such as ashes of al'ar and spectral tiger and such and didnt even ask for 500$ for it.

 

The difference is that in BC you could pick up a toon that was in current raid gear for that much, now people mostly sell outdated toons.