If I won the lottery, an in ground 2-column lift would be very interesting, especially if I expected to use it regularly for the purpose of working on cars. But... if I won the lottery, a ginormous garage would be in the mix and space would be a minor issue if at all and the inconvenience of working around several

above ground 2 and/or 4 post lifts in a huge workshop would be minor.
But, if you have to build a workshop on a budget, the size and/or height of your workshop may matter (for a variety of reasons). I'm currently planning my modest workshop around an in-ground scissor lift, such as a Bendpak P-6B. I really like the fact that it is flush to the ground which should make it much easier to move vehicles and other stuff around in my smallish workshop; I really do not want to have to dodge the lift posts all of the time. I've speculated that my projects may not even be on a lift most of the time...
So, I'm really ok with an in-ground, low to mid-rise lift in my detached workshop as I think that will suit me best in that space. However, I'm also lucky that I have an option to put a 2 or 4 post above ground lift in my attached garage, if I ever decide I need both...
