Dual Action Sander, bang for the buck

The less money you spend the more air you will need.
Had a cp for many years until i loaned it out. Whatever they used for oil destroyed it. May have been no oil and a lot of water.
Replaced it with an ingersoll and its fine. I would like to invest in an 8” d/a for knocking down big areas, word is it makes for a flatter surface.
A mud hog. They are aggressive but get it done.