That's a horrible case of missing out on something great! I want to replay HL1 now, it's been a while but I wasn't bothered by the graphics even after playing HL2 before that.
Im still planning on re-playing it, but i wanna just blow through it, and im really only playing it for the story line. I ended up having to put god-mode on, because at one save point i had 2% health, and had to go through a part that was impossible not to get hit once. Kinda stupid.
I just feel like I have been forcing myself to play some games, so really for me it comes down to - whats the point? I bought Space Marine for 5 bucks a few days ago, and IMO for a quick fun game its not bad. I certainly had more fun playing that than suffering through HL1 so far. Maybe thatll change once i play a little more.
what about Half Life Source?
Pretty sure source only looks slightly better than the original. Maybe black mesa will come out someday, then itll look much better.