most, not all, of the responses above have made one assumption or another about the OP.
The only way to answer the question from the OP is to respond with questions:
Why do you want to buy an aeroplane?
What do you want to do with the aeroplane?
Do you have a lot of money?
Those three questions are just the starting point for a very long investigation into what aeroplane to buy (or even if it's the right thing to do).
The best advice given so far, and which also gives the OP time to figure out the answers to these questions is this:
Hire an aeroplane for the first X amount of time to determine what you want to do with the aeroplane once you own it. But X would depend on the answers to the other questions, like how much money you have and why do you think you want to buy instead of rent.