You also can look into lower end rotary tools. Black & Decker makes one for about 25$, that can get you started on detailing without breaking the bank.
Be aware though, there is a legitimate reason for the higher price of high end Dremels. Generally, the more expensive rotaries have better heat management, and power management systems. When you put the drill bit under heavy load, a lot of the cheaper ones will just stop moving like when you grab a spinning fan and stop the blades. Better rotaries can actively regulate their power intake and ramp it up to overcome drops in RPM. They also have a tendency to have more metal components inside, so they can handle the high temperatures of extended cutting without melting down. If you get a lower end rotary, you can be fine, just be sure to give it rests when it starts getting hot, to extend the life of them.
I went through three low end power sanders before I buckled down and just payed for a high end one. It was a higher entry cost, but in the long run it's saved me money not having to replace it every two months. But again, I had the funds, if money is a concern a lower end tool is going to work out for your wallet, just be sure to treat it right so it can get as much life as possible.