In rec.woodworking
Wayne Brissette wrote:

If you don't think you are going to cut things larger than 2x4's, then you
may not need a 12-in. saw. A 10-in. may do the job you need.

Just a side note. I recently did some Pergo type flooring and my 12" cuts
it with about an 1/8" clear so if you ever want to do that, think about it.