No....... Don't buy it yet!
Before you buy check out
http://www.harborfreightusa.com/html...on/coupon.html
It will save you 15%, so 15% of $600 will put another $90 in your pocket. This coupon is for in store only and not all stores have the blast cabinets but the one I go to in Michigan sometimes has them, they will also order them.
Good luck!