Air compressor

Went looking for good compressor to run most air tools, had a single phase Craftsman 6.5 HP
(Devilbiss) 60 gallon for number of years. worked well but found that I could use a D/A sander for a few minutes then would have to wait for the pressure to build, same with a board sander or small blaster. Single phase was also very loud like a chipmunk on steroids . Last year I opted to a two stage Craftsman professional 5 hp 80 gallon. (Sanborn). What difference, run slow and steady. Never have to wait for air . Cost difference between the two was about 200 bucks. The same model for others supplier (Dewalt) will cost you 300 dollars more.