percentages - 5:21 am on Oct 21, 2006 (gmt 0)

As a professional website designer, now retired, all I can tell you is that I often spent over $100K of time on redesigning many of my sites.

You have to balance return on investment. For me spending $100K was a good investment. It was less than 2% cost of business, that equation will differ, so you need to do your own numbers!