Are you new to the entire concept of camping or do you have experience? You might consider something like RVRent.com to see what is available for rental near you to get your feet wet. Like DutchmenSport said, odds are within the first few years you will either bail out or else go deeper so this purchase will be a serious depreciation hit. I spent my entire life boating in vessels as large as 36 feet on large waters (think Atlantic Ocean). I'm now planning on camping, but my wife and I are certainly not buying anything. Two reasons being lack of storage and not being able to amortize the expense. I can find suitable units available for the few trips a year I think we'll be taking. If we get truly serious we might actually buy, but even then it will be previously owned, probably by someone who "made a mistake" when they bought in the first place.
And this isn't even going to the hot topic of tow vehicle suitability! Another subject for another time!
