Mmmmm....
As said previously ...... the 500 if you like flying, control response etc .... bit like flying a responsive airplane .... the JetRanger ... well its more like flying a bowl of porridge (and sloppy porridge at that!).
Also from a maintenance point of view ... the 500 HAS to be cheaper in the long run ... no control hydraulics etc ... engine is less stressed in the 500 install than in the 206. No mandatory TT strap changes on the 500......UNLESS you abuse the head.
Also the 500 has a 125kt cruise or better depending on weight.
Now the question is .... "What model of 500 to get?" for private use a 500A converted to "C" would prob be the way to go.
If you have lotsa money ... perhaps a 500D ... don't go near the "F" or one with the 250 R engine.
Cheers