lucy24 - 9:12 pm on Sep 24, 2011 (gmt 0)
You're looking at an investment: time rather than money. If you're only making the site once and then walking off, never to look at it again, it will obviously be faster to do what you already know how to do.
But if you are taking long-term responsibility for the site, you can expect it to change and grow over the years. That's when the time investment of learning php will pay off.
Do as I say. Not as I do.