But they were really, really good. An Indigo² Solid Impact R4400SC 250 was my main PC from 1998 until I left the US in late 2003. Built like a tank. Incredibly smooth in operation. Rang rings around my iMac G4, which ended up just sitting on top of the SGI's Trinitron running iTunes. I loved that machine, and I will go retrieve it in a few months.
Now the Fuel, of the final MIPS generation, was hot garbage. Early-2000s PC crap plus SGI does not equal awesome. Fast, but flaky, stuttery, and with too many graphical artifacts for the price. Maybe the V12 was better than the V10. I don't care to find out.