No doubt about it, ramps are good and make life soooo much easier as we get creaky. I stuck a 4 post hydraulic ramp in my barn a few years ago and it has been fantastic, even if half the time it's clogged up with the neighbours' cars and mine. Takes 3 tons, or 4 bikes without thinking about it, which suits me fine as you can only work on one at a time. Single phase motor too, although like all French paysans I do have a three phase 380v supply.
BUT if anyone asks what is the most useful thing in the shed (and the most enjoyable), it's a lathe. Second is the ramp, third is welding gear various (MIG and oxy/acetylene), fourth is a milling machine. Funnily enough, all cost about the same. ( New oriental millers can be had for less than the second-hand prices of small UK/US/German lathes with accesories). If my shed were smarter I'd take pix and post . . . come to think of it I might anyway!
Oh, and Compressed Air . . .