I loved galaga! And doom is great! I never played WoW but my brother was heavy into itI don't play games anymore, but I grew up in the 1980s with arcade shooters like Galaga, Salamander, and Xenon. When PCs got more powerful with the arrival of the 486 CPU, I also played Wolfenstein 3D a lot, next came Doom and Doom 2, and Heretic. After that, online multiplayer Quake III Team Arena (in Capture The Flag mode). Soon began the era of the famous invincible Logitech MX518 mouse, and Halo Combat Evolved (the PC version only). Around that time all the rest didn't appeal to me much despite I did continue my search for new and interesting PC games. So I got on WoW from day one, on a European PvE server, played only one char, rogue class, at the hardcore level. Then I quit WoW after the guild disbanded, quit mostly due to the impact of class imbalance on how top guilds weren't recruiting any rogues whatsoever back then.
The most fun I ever had in an MMORPG was soon after I came back on WoW the day when they released The Burning Crusade expansion. Especially 5 man heroics were both challenging and fun, and, the epic items I got from clearing these were better than the "noob instance" aka Karazhan. Several months after I got all rewards from keep farming 5 man heroics for badges, the game gradually started to become more boring again. It having been turned into "World Of Rangecraft" really began to take its toll, daily quests were like watching paint dry, who gives a flying fuck about "achievements", raids were always same recipe different sauce, you know... but nevertheless I decided to stay on WoW, and then finally I got Wrath Of The Lich King expansion, also on release day. I hated it on so many levels that it almost made me want to puke. I just kept wanting to quit WoW once and for good, which, at long last, I did. I had lost my whole interest in gaming altogether.