@Hook. You have a great point. The thing is, some of these ROMs have great potential that people wait to see realized. Cyanogen, in my case, is just such a ROM. I don't use a 10th of the ROM's ability to customize, but I like knowing it's there if I want it. I never got into the ROM hopping some people have. I'm extremely picky in what I'll tolerate and what I enjoy, and I'd offer to grill you a steak to prove it but I don't know if you're a vegetarian and I doubt you'd want to drive all the way out here for it. Anyway, what I've found that's made me glad I tried CM 6 can be summed up with two phrases -- built-in equalizer app for any and all audio playback outside of phone calls and a power widget that does more than I think the average user would ever figure out means, let alone needs. All of this with a stock-like feel that appeals to me because I like vanilla android. CyanogenMod gives me near ultimate-control over my Droid and does so without mucking things up or taking away from the easy-use feel I loved when I first got the Droid and started playing. Performance is a subjective thing. I never saw this fantastic speed boot BB was supposed to bring, or the amazing things Chevy put in his Simply Stunning ROM because I never needed to use them, and as many people have pointed out every Droid handles things differently.
In the end it's what do you want and how do you want it?
To the OP, what Hook says and what I just said are things you should consider. Ask yourself what you want out of ROMs, just like you did when you rooted, and move on from there. If you like it, great, but if not you have dozens of choices to try. Don't forget about themes, too, because if all you really want is a tastier look than a different ROM, those are the way to go. If you just want speed, flash in an OC kernel and get SetCPU. Etc. etc. etc.