I get sale papers all the time. Woodcraft sent one today and on the front page was a Rikom Air Cleaner for $199.00 on sale. I have a Jet Air Cleaner and they work. If you ever considered an air cleaner I dont think you could do much better. Clean lungs last a lifetime.
This air filter is good. I have one myself and have been super happy with it. Used in conjunction with other dust collection it really cuts down on dust in the shop.