As I have read and listened to the AOPA & EAA videos, you still will not be able to fly an airplane exceeding 1320 lbs (( and all the other LSA requirements )) with just a Sport Pilot license.
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Certainly the cost for getting the Private is about twice what the Sport Pilot license costs.
That's my take on it too, Rodney.
The Light Sport Category and Light Sport License was intended to
make it more affordable to get into aviation. It wasn't meant to be a
fall back when someone feels they can't pass a Third Class Medical.