In the long run, the advantage(if any)of getting your PPL at a tower controlled airport is minimal. In general, it will cost a bit more since tower controlled airports tend to be busier than an uncontrolled field. I did my PPL with a tower and spent many tenths on the hobbs meter waiting to depart or on an extended downwind. The quality of your instruction (that you can afford)should be the number one factor of where you choose to fly.

Standing by for LAFF's ATP plug.