You can pick up a reasonable aircraft, such as a good older Piper Cherokee 180 for somewhere between $30 & $45K
http://www.trade-a-plane.com/search?s-type=aircraft&make=piper&model=Cherokee+180&s-seq=2&s-lvl=2
It then depends on how much you use it. Most of the costs of owning an airplane are fixed, insurance, hangarage, annual inspections, registration etc. If you fly it for 100 hours per year, those hourly costs are about twice what they would be for 200 hours a year. The other difference will be in the cost of a 100 hour inspection about half way through the year.
Another cost to consider, particularly for more expensive aircraft is the loss of return on investment. In other words, how much you would earn if you put the purchase price in the bank.
Fuel cost will be around 10 gallons of 100LL per hour for most aircraft in this class.
I operate a Piper Arrow, essentially a retractable Cherokee 180, albeit with a 200 hp engine. It dates from 2008 so it is fairly new. I fly it for about 200 hours a year, between my self and my wife. Including the loss on about $400k of investment, I believe that it costs me about $200 an hour to operate, offset by tax relief on depreciation and the fact that my wife directly generates income from it. It is owned by our business.
I would think that, in the US you would be well covered at $125 an hour over 200 hours a year