Black&Decker RTX. Try it now. You have to use B&D attachments instead of Dremel ones, but all of the Dremel bits and collets/chucks work no problem as far as I know, maybe not the EZ Lock, but I've never bothered to try. Specs say 3 speed, but it is definitely variable with dedicated stops at the three speeds they list. It's on a wheel so spin it to where you want and go.
It's cheaper, quieter, more powerful, just less commercially focused. The motor brushes are a PITA to change if you ever want to do that unlike the easy drop in of a Dremel. Dremels are better for really fine work from what I've seen because their speed control covers a wider span (case work and enlarging holes are not that fine of a job, just requires some patience).
Don't just randomly give up on or hate other brands. Some suck, others outperform. Compare this to an iPod. How many times have you heard someone ask if you have an iPod when referring to any DAP out there. People say Dremel regardless of the rotary tool, but that doesn't mean it's the best in any way, just the most well known and popular. You may prefer an actual Dremel to an alternate rotary tool, but don't bash it until you've tried one.
I've used both a 300 and an RTX. The 300 felt like a tank, but the RTX is more comfortable. The RTX is quieter, the 300 has a much finer speed control. I can compare almost every feature, but I'll stop here and let you consider this option.