Shop material type

[Rickysnickers]

i may be moving sooner rather than later. The house we are looking at has some acreage and the wife has already said the shop is the first thing I can build. I just started looking and was looking at the steel buildings. Are these less expansive than stick framed shops and do they go up faster? For those that already have a shop, what insight can you give me? I already know I want to get the largest one I can afford to do. I know they are like safes, you outgrow them quickly. Oh and I should add that I will try to get a 2 post lift, so know that the concrete will need to be thicker. Knowing that, what height would you go with?

Thanks,
rick