Chris,
G'day,
Firstly, Welcome to the club, you're one a winner being part of this group.....
OK, the last part of your statement is correct....
it all depends on the condition of the plane. The only thing I would say however, is that the later models are easier to get parts for, so keep that in mind also when looking at a purchase, not saying you can't get bit's for older models of course, it just might take you a little longer to source them as such, plus for that reason, you might find them a little more pricey on the day.
Having said all that, no matter what you get, the on going cost will be approximately the same provided that you bought correctly in the first place.....remember, condition of the aircraft overall is the important thing, not it's age
So again, welcome to the club, your first step in joining this group has already been the right one, and will put you in a good position to make the best choice when the time comes to making the purchase down the track, don't be afraid to ask for help, and of course there is no such thing as a stupid question. There is an abundance of knowledge and experience amongst the members and you should take advantage of their experiences to ensure you don't end up wishing you never got into aviation in the first place.
Another suggestion, if you have not already done so, would to be buy Mike Arman's book - Owning, Buying or Flying the Cessna 150/152, you can buy it from the club store for 26.95 + P&H, again, another important investment prior to making your aircraft purchase
Anyway, Good luck to you, I and everyone I am sure wishes you all the best as you go forward to find you dream aircraft
Cheers