looking to start in on a new shop, and trying to weigh the pros and cons between a pole structure versus an all steel building on a concrete slab with footers. if i understand right, a pole building has a free standing stucture (no load-bearing walls) and requires no footer on the slab (which can be poured after the poles go up), thus saving a fella $$ on readymix and forms. or is it better to spend the extra and have a slab with 18" footers and an all steel building? i will be putting a lift in eventually, if that makes any difference.