Strangely, I've found that now I'm past the final mission and just going for 100%, I'm having much more fun. Without the pressure of continuing the story (my own 'what the fuck is going to happen' pressure) I can play the game more organically and just dick around. I actually want to date chicks and hang with my friends now, too. Weird. I just hate that I lose like 10K every time I die. What the hell is up with that?
And yeah, still finding new things and getting new quotes is mind-boggling. Just yesterday I got a lapdance from two chicks at once in the strip club for the 1st time. "What are you, sisters or cousins or something?" Lol.