How much rep is enough rep in relation to Stack Overflow and Stack Overflow Careers? 10K? 50K?
But then again if you've got that much it will never be "enough" as you'll want to keep your place on page 7 or even get up to page 6 (and then page 5...)
EDIT 8th Jan 2010
As an interesting aside 12.5k rep now gets you onto page 9. To get onto page 7 you'll need 13.5K. So in two months you'd need to get approximately 1K rep to keep your place at this level. 500 points a month shouldn't be too hard to keep up for a moderately active user.
Think from the point of view of a person looking to hire, who is the kind of person you want to work for. If that person were me, I'd be looking for someone who knows how to communicate well, and who is largely correct.
I can't actually tell that from just the rep score. I can get some idea if I know the average number of votes that person gets per answer. I can improve that by knowing what tags that person is active in (as upvotes are easier to come by in popular tags). But the only way I'll really know is by reading the person's answers.
Maybe I'd use rep just as a very crude first pass filter, discarding anyone with less than 1K - why would they want to use SO Careers if they're not really invested in SO? - but anything above that and I'd be interested in the details, not a number.
Now leaving careers aside, I think anything above about 93K is respectable.
A much better measure is quality. Employers will probable look at your home page.
- Are there any answers there that are of poor quality?
- Are there any outrageously bad questions there?
- What tags are you active on?
- Is your bio riddled with horrid phrasing and spelling? Too many jokes perhaps?
- Is there enough information there for them to make some sort of decision?
I would argue that even 500-1000 reputation can be enough as long as your home page is all quality.
I'm in the 7000s on SO, and the 3000s here, and feel comfortable with my rep. Would I like more? Sure, we all would!
So technically, there's never such a thing as "enough," but the truth is that once you're comfortably able to edit and vote-to-close, you're probably there. That said, rep is only one facet of the site -- it's not like people who really want to contribute stop just because they've rep-capped, or they're not likely to gain rep from an answer. At least, that hasn't stopped me. (Although I think I've only rep-capped 3 times ... and two of those were here on Meta.)
Well, the threshold to get free stickers was around 20k.
But there are those who feel too high a reputation will hurt you in terms of job hunting.
The 10k moderation tools aren't something worth getting reputation points just to get.
In order to have a buffer for bounty, and do most of the editing you might ever want, I'd say right around 7-8k is good.