Everyone is different.  It may be worth it to you and not others.  There are a lot of variables.  For instance, you ask if its profitable.  Sure, it is profitable to mine most altcoins, but what people consider profitable varies greatly.  If you were making 5.00 a day it would take around 280 days to break even.  Is it profitable?  Sure, but do you want to wait 280 days to break even (and that is assuming everything stays the same which it rarely does)? What if you were making 1.00 a day, it would take you 1400 days to break even.  It is profitable, but is that something you would do?

All the information is out there.  If you want to start mining have a good realistic plan you can be successful, but mining is not a get rich program, its more of a slow and steady.