I haven't played KF1 so I guess I'm missing much? but KF2 is a nice game that I kill some stress with and seems pretty nice
UPDATE: These are really true, their updates are focused on certain perks, like the medic had 2 weapons and a new skill ! Did the medic need these? I don't think so!
And another weapon for the berserker! why? he's already got a sh*t-load of weapons! he didn't need those!
Plus, why add new weapons as HRG weapons and not include the community made weapons! there are lots of weapons that are worth adding to the game!
I wouldn't say you're missing much... Honestly, it's hard to come back to KF1 after experiencing KF2, because a lot of quality changes were non-existent back in the day. It's hard to deal with perks that aren't so different from one another (since they got no skills). It's hard to deal without the sprint and overall less mobility. It's hard to deal with zeds which have fewer capabilities, but are meaner and tougher to kill (they are very much like the old-timey zombies : very slow, but will make you have a hard time). It's also a bit hard to look at nowadays, even if that grittier, darker feel does have it's charm... It certainly felt more like a horror game than KF2 does. It also had a different meta ! Like, all perks got hefty discounts on their weapons, which increased as you leveled up. You could even spawn with some guns at level 5 and 6 ! Very important indeed, since all you started with was a 9mm and a knife... Meaning everyone usually started the game as a sharpshooter. Hell... I even remember when the game didn't have the demo yet ! Or when the firebug only got the flamethrower, the medic only had the MP7 and thus was a very fragile perk... Meanwhile, the katana was a big mean killing machine !
All in all, I'd say go for it if you can get it for a cheap price and try it for yourself. It's always fun to see how far we've come ! And with some friends, the game is still mad fun. Not to mention the game has some great maps that didn't get ported to KF2. But yeah... if you didn't play the game at its prime, you probably won't get it.
Now as for the rest...
I'm not against perk-focused updates, but then they should really go deeper. Like if you're feeling giving the medic new weapons... You might as well rethink his skill tree a little bit. And yet, as you mention, some perks are simply not in need of more weapons anymore.
****, I would go as far as to say that the whole GAME doesn't need new weapons. It's always pleasing, sure, but at that point I would rather get something that truly surprise me... That or something that improves the game's experience. There's just so many guns you can add before it starts to feel stale. It's already becoming more and more difficult to choose a T2 or T3 weapon. I'm not saying it needed to be straightforward (as in one T1, one T2 , one T3 etc.) , but too many choices just kills it after a while.
Hence why I'm a bit skeptical about community-made weapons... Not that I feel they couldn't fit or that they aren't made with care and balancing at heart, but we don't really need another truckload of assault rifles. They would just overlap on each other.
(Even if I would lie if I said that it wasn't one of my guilty pleasures in the first game... Some were stupidly OP, but others were creative and interesting !)
(Considering some great ideas I've seen on these forums, I really feel they should listen to the community more...And not just to bring new maps)