seller isn't taking the whole hit, buyer is already paying a high percentage
auction house charges both seller/buyer a percentage + the (tax man - first of year on auctions)
this percentage has gotten so high it doesn't seem feasible too go this route
sell too a private party (cash) & cut out the auction house & tax man
when the dust settles you've lost close too 50% of your investment (a no brainer) .. ...
