I am not expecting you to cop them, but i can find website with a lot less traffic than DD with much more sophisticated websites
I'm well aware. DD is almost a decade old. Ancient in internet years.
If I do it, I'd probably build in some new features and better integrate DDF. I just don't know if the ROI is there.
United's 10 year old website was ugly but did the trick. Now it has bells and whistles and everyone hates it.