I'd also go for the CAP10 - it is a fantastic aeroplane and I think it's probably a more practical choice too. If you get hooked on aeros (if? of course you will
) then you'll want to fly something aerobatic afterwards, and the CAP10 is closer to the kind of aeroplane you can easily (and cheaply!) hire. I'd love a go in a Pitts or Extra, but i kind of doubt that aeros in a Pitts have much in common with the Robin or 152 Aerobat you'll probably find yourself in afterwards.
Of course, if money isn't an issue learn on the Pitts ... and keep flying it afterwards
