Scan tools?

[Aurora40]

I really wanted to get a Tech-I to do it up right on the ZR-1. But they rarely show up for sale. Also, they are kind of steep. I've been wondering if the ability to trigger stuff is actually very necessary or useful?

I have long looked at PC software, as I have a laptop. But looking at AutoXray, their EZ-Scan 6000 looks appealing. It's about the price of OBD-I and OBD-II software (from EASE for example), but would be more convenient than a laptop. The only downside is the recording, it can only hold 29 frames (as rapid as 2 frames per second up to one frame per 5 seconds). It has some PC hookup, but I think it's after the fact, I don't think you can use the PC to log infinite recordings.

Anyone have any experience with these? Worth it, or not? I like that I could use it on the 'vette, the OBD-II Regal and Aurora, and even on the beater 200SX.