I have three SGIs (two Indigos and an Indy) and I love 'em. They're great systems.
The Indy gets daily use... mainly for video capture. I have the Indy Video and Cosmo Compression cards in mine, so even though it is a 1993 system I can still capture at full frame size and full frame rate.
Plus I watch TV on it. It is connected to a DVD player, VCR and (basic) Cable TV.
I've had the Indy since 1999. I've upgraded the RAM, the hard drive, the processor, added the Indy Video and Cosmo Compression cards, it is also connected to a CD-ROM drive and Zip drive (it reads Mac formatted media perfectly).
My Indigos, on the other hand, basically sit around collecting dust. It has pretty much been this way since I got the Indy. But they are still cool systems,

just not as cool as my Indy.