Id go cheap unless you're going to get some serious use out of the Dremel.
I have an older dremel, variable speed, its over 15 years old...but then hasnt seen much work and i cant think if i ever used it at home (it saw modestly regular use at work)
Replace the Draper 4 times to equal the price if the Dremel. If its just general, occasional, hobbyists use, Draper without a doubt for me