The big question is why?

Power:
-good for transportation, if you frequently go 300-500 miles or
somewhere far from airports and roads, and don't mind delays getting
back on occasion
-aerobatics look like fun
-towplane


Glider:
-Much more fun for "how to spend sunday afternoon flying" than a
hundred dollar hamburger ride
-Much more challenging

Need more time in the air, and willing to blow huge amounts of money
to get there? Go to new zealand/austraila/argentina for the winter!
Take up contest soaring, and fly from seniors to newcastle! Gliding
offers plenty of ways to fulfill that goal! I've never heard of anyone
who ran out of challenges or ways to burn up money and time in the
quest for aviation while flying gliders

John Cochrane