It is a good idea, though currently still having teething problems.
"One click" and you udownload the necessary mod/track to enter your
chosen race. The hard part is going to be standardizing the
installation routines. Some of the mods unpack into /rFactor, some are
exe's, some tracks fo to /Locations, some are exe's, some go to
/rFactor. Currently Vista 64 is a problem, I have to self install
after the auto-download but once installed most work fine. Ran an F3
car at Limerock yesterday (1st time) and had fun.. race was waaaaay
too short though.

GR