Hi! so I was wondering whether greymoor is worth it to return to?

Or better... is it worth spending 40euro"s on?
I'm the allround player. Mainly focused on PVE , but just to get stronger in PVP ( which i'm not really that good at yet, not in cyrodill anyways) . I think i got all classes geared up and ready to play. CP 800 . I'm quite skilled with magsorc

and stamsorc.
Normally i wouldn't care and just buy the game. But now i'm truly asking myself whether it's worth spending (another ( elsweyr, summerset, base game) 40euro's on or not. I mean i know About the huge lag issues, the desyncs, and so on, In PVE i can even live with it... And i love new maps once in a while, But I would like to have some kind of reassurance that the game is going to get better performance wise. Allso the dungeonfinder is extremely annoying to queue in for an hour as DPS and 1 second as tank.
The game is able to keep my attention for a while. But i find myself mostly completing each expansion in a day or 2. Make a new character, get hyped up, reach level 50 and get bored and leave again till next update. Is there a reason i'm going to stay this time? ( beside them downgrading my maelstorm weapons, master weapons ) which i farmed for weeks/months)
I guess i'm not even sure what i"m asking.