I bought it second hand and it was in very good condition so I didn't have to pay that hefty premium. But you are right to be honest. Since our flat is only about 1000 sq ft and it's all 'hardwood' flooring, thee powerful oversized Dyson's are not really necessary. For floors, most vacuum cleaners will do the job fine.
So if I had to buy new, I would not bother paying the premium.