I've had both Bench top and floor model. I was literally going out the door to get a new Bench Top model (my old Craftsman died, siezed bearings, and I had no idea how to find new ones for it), but I checked Craigslist before I went out the door. I came home with a 15" 16 speed 3/4 HP Northern Industrial floor model for $75.00. Plenty of capacity, very accurate, very reliable. I have had this DP now for 2 years, it's probably 15 years old now, and the original belts are starting to need to be replaced... No big deal...
But I digress here... On the subject of which one... Believe it or not, if you set up a floor model with a mobile base, and maybe a cabinet that can roll under and out from under when the column is needed, it is a lot less hassle to deal with a floor model... I know it seems counter intuitive, but it works...
Trying to follow the example of the master...