For the record: I myself would prefer reality to sweet illusion, but that could easily change if i was terribly discontented with my life.

As far as i see it:
1. You live your real life, maybe happy maybe not, then cease to exist.
2. You live your illusion, in extreme bliss, then cease to exist.

PS: I've never done any drugs barring alcohol ;) Just so no one gets funny thoughts.