Owning will probably turn out to be more expensive than renting unless
you have time to fly a lot.

Set aside 10% of the purchase price for fixup costs on any used
airplane you buy. there will be things that the previous owner
thought were OK but you will want to fix/replace.

Look for current avionics. The value of new avionics in a used
airplane runs only about half the installed cost.

Get one that your local mechanics know how to maintain.

Cessnas and Pipers are numerous enough that parts are readily
available. Beech parts are available too, but tend to be a lot more
expensive.

Seriously consider a partnership if you can find one, but make sure
that all members are active, and have a knowledgeable mechanic review
the aircraft logbooks (this goes for anything you buy).

Don't skimp on the pre-purchase inspection. Have it done by an
independent shop.