the Dremel is sort of a marginal scroll saw, more of a jig saw. I had one and it was useful for sawing aluminum, plywood, etc. the most sophisticated saw I had was a Hegner which with a wide blade selection could do amazing precision work. Blades are the thing and the pin type blades are more limited in selection.
maybe if one was only doing certain types of work with limited budget and space your style might dictate other choices.