Look, a 152 will burn about 7 gph...at say $2 a gallon, that'll be $14 an hour just for the gas. and these are conservative numbers so round it up to $20 an hour, just for the gas.
Then comes a repair fund, an anual fund, a new engine fund, debt service on the note if you financed the a/c, fixed insurance costs, fixed tiedown costs and costs for any upgrades you want to make, or that you're required to make due to regulations.
On top of that, if you own the a/c, you've got availability issues. When it breaks, you've got to organise the repairs and wait for them to be done - even if you're doing them yourself.
Still owning is a wonderful thing. It'll make you a better pilot and it'll teach you all kinds of things that renting won't. Just don't ever buy an aircraft and put it out for lease.