Hangovers are all dependent on how you drink, and what you do aside from drink. If you've eaten and make sure to stay hydrated (drink lots of water), then the chances of you having a hangover are very, very low. I've had one once, and it was waaay mild.

Secondly, tipsy is kinda fun. Light drunk (enough to lose some inhibitions, be silly, feel tipsy, etc.) is fun, at least for me. ;) But, of course, your mileage may vary.

I certainly don't drink enough to get addicted to it, though, lol. For instance, I've got like 4 hard lemonades in my fridge and I could very easily grab one whenever I want. They've been sitting there for 5 days now. ;)