Not necessarily. If you buy one, fly the shit out of it for 50 or 100 hours, then sell it for what you paid for it, it can be cheaper. You are gambling you can get it done before the annual, that nothing breaks, and that the 100 hour inspection, if you fly it that far, will be relatively inexpensive. And you need to commit to selling it, lest you become an aircraft owner "for real".
You need to figure it as follows:
- cost of money (loan interest or loss of interest on the principal)
- gas
- oil
- tie down/hangarage
- registration
- insurance
Insurance is, by far, the 800lb gorilla. It will easily be the bulk of expenses. This assumes, however, that you can get a good rate on insurance. I have no idea what insurance costs for a student pilot owned aircraft are these days. For $35K you may want to self-insure the hull and only carry liability.
Step one, before you do anything else, is to get insurance quotes. That will make your decision for you, one way or the other. Step two is to see if the current owner will throw in an annual inspection as part of the sale so you are starting the one year clock fresh, and to uncover any lingering maintenance issues you don't want to inherit.
On the other hand, there is nothing like owning your own aircraft (good and bad
). The first time you want to keep the thing overnight somewhere and the school says "Sure, but it's a four hour minimum per day on the rental if you take it overnight" is when that itch starts.