The Kymco is a gy6 variant, albeit one of the best there is. If you have any interest in working on it yourself almost everything on it can be repaired with a few hand tools. In my experience none of the gy6 variants are a good value if you pay someone else to fix them.
I will agree that the car is a safer option than the scooter, but that doesn't really mean anything. Jogging in the park is safer than playing hockey, but I'm not about to stop playing hockey. I'm also not sure the scooter is more dangerous than riding a bicycle...
But as far as your real question goes. The process I learned and adapted goes as follows: decide I want it, allocate for it in the budget, set the funds aside (not pull from some other account), then pay cash. If you're this torn about it I'm assuming you really want it. The next step would be to discuss altering the budget with your other half. Have you already had this conversation? Usually if I want something hair-brained my wife is the good angel to shut it down and keep me on track. If I want something that I don't think is worth what is has been deemed to be worth by the rest of the world my wife is the one to remind me how cheap I am and to just buy it (or she'll buy it for me knowing I won't buy it for myself).