I would add for those in environments where compliance (PCIDSS, NIST-800-53, Reg 5.71, etc) is an issue, Cpanel's approach to recompiling core packages (openssl notably) causes you to loose your certification for FIPS-140-2. The managed update approach, using tools like yum or apt are IM(not so)HO considerably superior given that you have rollbacks, 3rd party support, no vendor lockin, *remove capabilities*
, etc.
I agree with you on a nice pretty web gui for it though, which is why I wrote one
Its a front end to yum for plesk called atomic-yum:
http://www4.atomicorp.com/channels/source/atomic-yum/ (GPLv3). PS- I'd love to see apt support built into this, if any debian/ubuntu folks want to give it a shot.
yum and apt make the features of easyapache a look like a rounding error