yep deff go the dobs, i picked up my 10" dob for 370 second hand... and they go retail for 700
there are some real bargains out there, pick out the one that youll use the most, no point in getting a 12" dob and its too big to lug around so it sits there gathering dust... rather have a 6" dob that gets used then a 12" that doesnt get used... hope this helps
cheers
tony