Honestly you want your day to day work in the NOC to be less challenging. >> A good network design just works. <<
Where the NOC earns its pay is when the network decides to take a vacation, often at wonderful times like end of month when everyone needs it. Worst case you get a job title and a little experience in the NOC.
Years ago, working at the Help Desk, I would've have said, "I don't understand".
Now, at Level 2, yeah, things can get a little routine - wipe/reinstall, check to see if Faronics is dealing with those updates, etc
But, as Kilroy points out, when it breaks - like mine did a few months back - ugh, it was an ugly 4 days. No sleep, lots of coffee & stress, lots of emails and my Director, who is nice, checking in and asking for a status update.
Some days can get tedious but, as you mentioned, if there's a bump in your pay, you can also add another skill set to your resume.