Owning an aircraft and the word investment do not belong in the same sentence. There are certain things in life that make zero economic sense. Booze, women ,boats, world travel , nice restaurants...you get the drift. There are times, if you can afford it that you do stuff just for fun and personal enjoyment and that's a very good thing. Simple things like raising a family which is seriously expensive we do because we get this thing called "payback"...It makes us feel good.
Flying, if you have a passion for it gives you lots of payback and not just in doing it but also the other fliers we hang out with and even the comradery we feel on a site like this. Decide how much money you can do without and make the plunge, you won't regret it. Cheers