Got a question about AC units. I'm having a new unit put in. All 3 folks to come look at it have quoted Rheem units. I'm getting the to quote 15 SEER units. Would it be worth my money to step up to 16 SEER? Or am I wasting money and should drop down to a 14 SEER? I live alone so the energy saving will probably be negligible anyway, right? @ALLTIGER85