I'm finding in my contracting work that my database skills are above-average and usually one of the big things that I'm relied upon for and I think this is worth pursuing.
Then again, maybe DBAs aren't as bogged down by the minutiae in some places and have more of an ability to troubshoot and resolve DB code/structure problems. It always seems like that's their job but they never have enough time to properly do it with the myriad of other requests.
Looked like a sweet deal.
On the other hand there is a lot of pressure as the DBA. Backups, redundancy, security, etc... all fall onto the DBA to get done and done right. Fat finger a script and blow away a key table sucks (a DBA isn't a DBA until they have done this once), but it drives the point home that backups, backups, backups are key.
EDIT
The other part is the blame for lots of woes will end up on the DBAs desk. I'm a fix it and move on kind of person, but if you take things like that personally a DBA position might not be for you.