Where would you go to buy a airplane? I think that the Internet is the best place. Firstly you can use it to search around and see what is available. Then you can use it to read reviews of the various planes and which is the best. Then you can use it to communicate with the seller and find out about the plane that they have for sale. The Internet is wonderful for bringing buyers and seller together like this and it can mean that you have far more choice available to you than you would have had if you were just relying on magazine and newspaper advertisements.
It is amazing how many websites there are with used airplanes on them. It is great to have such a good selection as it can be a really big decision, knowing which to choose. Anyone who has tried to buy aircraft before will understand why it is important to get exactly the right one and to find out all about it before you buy it. With on line reviews of things, it is easier to decide which of them would be the best model to buy and then you just have to find out which specific one, that is for sale, will be the best for you to buy for yourself.