Nobody who says "too many important calls bro" has any important calls coming in, let alone calls important enough to warrant not being able to be away for a 30 minute update.
(Check his twitter if you want further evidence he can go 30 minutes without calls, lol)
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My biggest concern is like with 6.0 vs 6.1, some developers wrote their apps so that if you were to try to run it on 6.0, it'd pop up saying you have to update to have it work... version spoofers are unreliable at times. So for me it's more protecting against that aspect, along with the fact that it really does make a big difference (vs 7.0.4) for my iPad... scrolling and web pages are so much more smooth.
But yeah, it's a balance of want vs need.... and I don't think anyone needs it, but we should all be prepared for the fact that Apple may release an update in a week to kill it ... and iOS 8 is still months away, and having burned 2 exploits on 7.1.x, it's likely that the JB devs will wait until an 8.0.x release for their jailbreak, if they even have a back-pocket exploit, so we're looking at potentially early 2015 in a best-case scenario... so to me it's worth a little hassle doing an upgrade and pushing ahead the 5 revisions from 7.0.4 to 7.1.2 since it may be some time before I have the opportunity to upgrade without losing the jailbreak.