Well, I know your account have pretty good steem Power and your account have some value. but I don't think people should spend 150$ for buy such account.
Steem have re-opened registrations and everyone can join for free and can build his own account and can get SP for free.
it depends on the time someone can spend on steem. even some peoples can get more steem pover in only one day.

I have no much experience about steem but I at least know that it is free.