Yep, I understand where you are coming from Roel. I'd be the same. But people have to be pragmatic too. Not everyone will have the time to commit to producing a perfectly polished solution. Some people may just want the cert and not be bothered about how good their solution is or whether they learned much. Some people may want to get the cert before they have to pay another $2,250
. Various reasons.
I guess what I was highlighting was that Oracle themselves seem to gauge the level of effort required to be considerably less than the FAQ on this site suggests. I can't remember if Sun themselves gave an indication of the level of effort required - I thought they did, and I thought it was similar to what this site suggests, but I can't remember.
If you spend a lot more than two weeks on the project, you might well be creating something that is more detailed than is really required, and you might want to review the scoring criteria and problem statement provided in the assignment.
So this is worth keeping in mind when considering doing this cert. A lot of people may be put off by the hearing 240 to 320 hours are required to pass this cert.