The lure of ownership is strong, but the reality is financially straining. I whole-heartedly endorse ownership for both convenience and personal safety, but one should certainly go in with eyes open. Talk to other owners for a reality check. It doesn't hurt to start small, and build your way up as you learn more about why and how much you fly, and how much financial commitment you can afford. The reality of ownership is that for any new-to-you plane you purchase, especially if you get a good deal, there will likely be 1-3 years of "enhanced maintenance" to bring the plane up to your safety and comfort standards. There are usually reasons why people sell aircraft, and financial stresses (and associated deferred maintenance) is a popular reason. If you avoid the "enhanced maintenance" period, then you probably paid top dollar up front. A well-equipped, modestly powered 4-place (150-180 hp) is going to cost well in excess of $50k. And a light aircraft is not a reliable means of transportation if you *have* to be there, especially if limited to VFR operations, unless you live in a weather-blessed region of the country. But if you understand the limitations and can be flexible, it can be a lot of fun to travel by light plane instead of long-distance marathon driving.
I bought a two-place (AA-1A) initially, and wore it out for 4 years gaining experience before selling it for a 4-place (AA-5) for IFR training and beyond. The AA-5 is right for my mission, which is regional and sometimes beyond IFR trips for 2 plus luggage. That keeps me well within safety margins for performance and loading. When I needed more capacity, I rented a Tiger (AA-5B) into which it was possible to cram 3 adults plus camping gear with full fuel, but barely. I'm not a big fan on flying on the ragged edge of MGW. If you need more plane than you can afford outright, then a renting or a flying club makes sense.