The gallery is an awesome reward, what's wrong with you? It's just slightly jaded by the subsequent release of many of those images in readily-accessible digital and print format.
Yer not many people achieve this...
I know ıts ımpossıble to kıll 300 of them, but I kılled all that I could. I guess I dıd, because I got ınfınıte grenades. I saıd 300, because I dont remember the number of kıllable muds.
I don't know what's so interesting about the gallery! Yeah, it's cool to see the concept art of the game, but, at the time I just wanted to know who Munch was (sneak-pic)... but, well, I know now
I'm currently working on saving all 300. so far i've just finished the Scrab vault and i've saved about 90 something and i've had no deaths. I've complete all the secret areas so far and i've saved them all in Necrum Mines.
I've only actually played it through once (though I used to cheat all over the place when I was younger, and I didn't quite get 300. Didn't kill any though, so I must have missed a couple of secret areas.