Single Page Portfolio's

Well I suppose we don't see eye to eye on this one.

I had an internship a few years ago where the IT users disabled all js using a firefox plugin by default before assigning computers to all the staff. So I have to disagree with you on the "crummy visitor" remark.

The second point is not valid much either since they would still be downloading, and if you've looked at a few of the portfolio's they contain a few mb's of data which is outrageous even if you load only parts of it at a time.