I am an Oracle Certified DBA, and I do not consider this a great loss.
For several reasons:
- My (then) employer paid for the certification
- I considered the certification test EASY. I had already been an Oracle DBA for about a year at the time (worked with Oracle products for about 5), and the test covered the stuff the manuals documented anyway. Anybody capable of digesting the Administrator's Manual should have no trouble on the test. The manuals were actually pretty good.
- The certification is tied to the Oracle RDBMS version number. So being certified on an older version is of limited value anyway. (I know: The base RDBMS doesn't really change that much, but they wrap all sorts of nonsense around it)
- Oracle is becoming increasingly irrelevant: MySQL (although now owned by Oracle too) takes the bottom end of the market share with ease, PostgreSQL the middle bit, and there are a lot fewer sales to be made at the high end.