Not worth it because the parallel jailbroken world instead of being something full of free and interesting things is poor and full of things that you need to pay for, but, 5 times the average app price on iTunes.

I'm not going to get instabilities and hard to upgrade devices just for SBSettings or alike.

Unfortunately too many people only jailbreak so that they can install software for free. That said it completely sucks that Apple does not allow me to be in control of what I want to install, including apps downloaded from a web site.

Also, a lot of people install SBSettings just because how freaking lame is the iOS algorithm to understand how bright the screen should be a given light level. Lame.