I mean, a 14 mm is nice, useful for certain applications (I forget what--old seat clamps? Old sturmey axle nuts?). This is just my opinion, but if money is an issue, my recommendations on what'll get you by are above. A 3-way is a y-shaped socket wrench with 8-9-10 mm.
Or just get a set of shiny and long craftsmans. They're nice.