its all relative to your liking. meaning; what are YOUR reasons for jailbreaking to begin with?
some people jailbroke for the very same changes that Apple has implemented into iOS 5. i know some people who no longer will jailbreak because iOS 5 satisfies their needs. i know others who despise it.. where do you fall into?
for me, jailbreaking just adds extra benefits to an already great system. like a bonus, if you will
at the time, when iOS 5 beta came out, i was jailbroken on iOS 4.x.x but very bored with it so iOS 5 was a nice change. in fact i felt, at the time, that a buggy iOS 5 (beta) was better than a jailbroken iOS 4.x.x
now i am jailbroken on iOS 5 and there are some pretty cool tweaks out there now. i am now interested in the jailbreak again
of course until an untethered JB for iOS 5 is released you will have to contend with the tethered jailbreak and i am assuming you're on an untethered JB. that alone is what keeps most where they are until further changes