To replace the 128MB RAM new would be about $65 US from OWC, last I checked. Not such a bad deal after all.

I think the SE/30 is a splendid machine! If you want to see it really fly, keep it running System 6 or 7.0.1. Without a CPU upgrade it'll be fine in 7.5.5, but it feels a bit sluggish to me compared to the lighter system versions.