For the most part, the racing at ISW is great.. Tickets are not a problem, and for the most part, it's only 2-3 hours(at most) travel between the tracks....

But there are a few downsides, especially if you travel a ways to get to ISW..
The split week - first weekend 4 shows, then three/four off days, then three shows. While there is a ton of stuff to do in and around INDY, like the brickyard museum, it can be a bit boring. But there are some short tracks that are not part of ISW that schedule shows on off nights, so there is something to do...

If you're not camping or in an RV, you have find motels - either near each track, or centrally located. But if you're centrally located, be prepared to drive a bunch...and with gas at $4/gallon.....

But you'll never see better racing over a shorter period of time with full fields each night, with car counts from 35 and up; and you'll get to see a bunch of great tracks....