Yes, hangars are generally near a runway, whether it's at an airport or on someone's farm and for the reasons you mentioned (transporting and removing wings etc)
Generally removing flying surfaces for storage or transport is not a great option. It introduces lots of potential for missing something vital and having a really bad flying day when a wing folds or comes off, or a control surface ceases to function. Also, it adds a significant amount of overhead time to your actual flying hours. I used to own a trike which I used to transport on a trailer to other airfields. The setup/packup becomes a real PITA after a few goes.
Also, aircraft REALLY don't like being transported by road. They are very lightly constructed and not designed for extended travel, particularly on Oz's crappy road system. The bumps and shakes bend things and loosen things and it's generally not a great solution.
As others have said, if you're looking for a 4-6 place plane, you definitely won't be taking the wings off that unless you have a LAME license or similar.
Also about that 4-6 seats. You probably find that unless you have an IFR license and a very well fitted out IFR aircraft, you probably do mostly recreational flying, which usually means yourself and probably one other person. If you're paying the maintenance and fuel bills to carry 4 empty seats for most flights, flying gets expensive real quick.
Back to the hangar situation, I stick with my suggestions as they've worked well for me. But if your situation is such that there's not an airport near you, then someone's farm might be the solution. The potential downside is you're subject to how well the farmer maintains the runway(s) and if they run cattle or other animals on it, it can get a bit complicated.
In all things flying “Simplicate and add lightness.”: R. Kelly Johnson, designer of the U2 and the SR71.