You can't also expect an artist to cater for every kind of machine/project out there.
Yeah its very nice, however considering where he's advertising, the remarks are expected. Old rendering engine (that is Blitz3D and B3DSDK), low end idie market. Expect low end video cards ect, or expect that the buyer probably isnt developing for high end machines.
Also , I would expect to pay alot if it was a custom job just for me, but then the same can be said for any kind of custom work. What do you think Mark Sibly would charge you for blitzmax if you were the only one who got to use it ? :)
I wouldnt expect anyone who buys this on turbosquid to have the same comments, but here on this forum. Im not suprised at all, More LOD versions couldnt hurt a bit if hes got the time to make them.
Amazing work regardless.