) and I feel that one of the main reasons is because of the general "feel" of Nightfire and its maps. The most noticable thing that I have missed is Nightfire's "cosyness;" I recently played on Smith's unfinished ctf_treshold (great map 
) and that has a nice cosy-calm feeling cellar with a slowly pulsating yellowish light which seemed to relax me quite a lot.
I think the main difference between GoldSource (Nightfire, Half Life) and Source (Refraction, Half Life 2) graphics, bar the obvious realism in Source, is the mood: the Nightfire maps can make you feel comfortable and cosy with their soft lighting and slightly surreal, blocky graphics, while the Half Life 2: Deathmatch maps and other Source levels are made to be a lot more like real life, and so feel harsher with sharper edges and a less comfortable appearance.
The real reason that many people stay with Nightfire, I think, is the feeling it creates whenever you play it: it's a nice feeling and reminds me of the friendly banter of multiplayer matches; the strange enticement to play missions over again, even though they have been criticised by many reviewers; the soft colours and stony textures of Zero Degrees' ctf_knox; the brown, woody twilight darkness of the open-spaced, water filled dm_caviar; the well-lit, light bluey mood and the gentle, soothing humming of the many various machines in dm_power.
This, more than anything, is proof that in games graphics aren't everything, and that even a game with not-so-good ratings and reviews can appeal to a range of people with the factors that no other games can perfect.
in NF its probably above 1... if it isnt im either depressed or havin too much of a good time to care 
