Well the Dell curved is another "non pro ips" monitor, which means it only covers 70% Adobe-RGB space..
Basically that translates to slightly worse colors.. vs the 100-110% argb coverage screens, where the colors EXPLODE off the screen..
Now, as far as GAMING is concerned.. the new ACER lightboosted IPS is the best monitor out there..
If you're buying a monitor for gaming today, you'd be stupid as sh7 to not get something with ULMB (Lightboost).. be it TN or IPS, lightboost is super important for gaming..
Not so much starcraft 2.., but for MOBA and FPS, lightboost is fantastic.
If you're gonna get IPS for something that involves "WORK" that translates to Accurate PRINTING or MASTERING... you're going to want the 100-110% A-rgb coverage screen.
I recommend the 34" LG for work. it's also only ~$1200 on amazon.
The 70% A-rgb screens are really just a cost cutting measure on part of the manufacturer's side to satisfy the curiosity of n00bs who neither Games-well nor Works-well...