Maybe so but the HL mod community is still the strongest, because Valve actually supports it even after 4 years of existence. And there is no slowing down. If you look on gamespy, there are 100,000+ players in HL and no more than maybe 8 or 9k in any other game.
Not to mention the single player game was very innovative and unique. These things no only make it the best FPS of all time in my opinion, but the best PC game of all time as well. Long live HL!
PC - | Core i7-2600K @ stock | Gigabyte GA-P67A-UD3 | 4GB Patriot Sector 5 DDR3 | Galaxy GTX 460 1GB @ stock | Corsair Force 120GB SSD | Seagate 1TB 7200RPM | 320GB Seagate 7200.10 | 2x Seagate 500GB USB 2.0 | Lite-On 20x SATA DVD+RW | Silverstone TJ-09 | Corsair 620W PSU | Logitech Z-5500s | Sennheiser HD-570 headphones | Samsung 2494LW |
Laptop - | Dell Inspiron 1420 | C2D T7300 (2.0GHz, 4MB cache) | 2GB DDR2-667 | 160GB 7200RPM HDD | DVD +/- RW | 14.1" WXGA+ (1440x900) | Broadcom 802.11g | NVIDIA 8400M GS 128MB |