The prices of Accounts generally depends upon the Rank , Activity(Present) , Potential activity , Post quality , Trust , Ban Criteria.
The time of registered account is also a significant factor in determining the price.
when i last looked they were going for like 0.2/0.3 full/senior but seems everyone and their mother is now selling them so hoping to snag a good price
Yeah you noticed the right thing , before the BTC/USD price was around 245-250 $ so they were selling them for less amount now seeing that again the price gonna be skyrocketing they wanna make as much they can make from the trading of account.
How much for full time/senior member account
If it is newly created Sr.Member then you can get it for 0.15
BTC (least) if it is tending much to Hero then price may be least 0.45
BTC.