the "popular aution site" ones are nice, because they are turned on a lathe for trueness. But they come at a price. For three dollars i have made six full sets of drift tires (thats 24 total tires). All i ad to do to make mine real nice and pretty was: Mount the tires on the rim, chuck the wheel through the axle hole on my dremel, turn the dremel on, and smooth out the sidewalls and surface with a piece of sandpaper while the dremel spins. It was really quite easy and the results are very nice looking tires, you can see mine in this thread (all of my cars have the ABS tires cut by me).

http://www.rcuniverse.com/forum/m_3529130/tm.htm

In my opinion they look just as good. You can do it.