If you can wait until someone has a dyno day at their shop it's cheaper. I think Lidio's last one was either $50 or $75 for two pulls, plus you get the hot dogs, pop and get to see all the other cool machines!
I think Lidio's dyno day is just before Mother's day every year. If I recall right it was $50 for a couple pulls. As was stated a lot of other cool cars and food. Fun day for gear-heads.