One major reason I have stuck with Dolphin through the years...?
SEO
If (your) the structure of links to google are great. I have never posted a single ad, to websubmission or another search site for mynewbeetle.net yet my google rankings are HIGH.
So, when 7.1 is released, mynewbeetle.net has already benefited from the SEO, I can post more stats.. maybe later.
If your a niche site, Dolphin will get you to the top of google, bing or what whatvever.
Let's do a demo.. my demo site of 7.1.. no submissions to google... but yet search for
"2003 new beetle 1.8t intake"
https://www.google.com/search?sa=t&rct=j&q=2003%20new%20beetle%201.8t%20intake&source=web&cd=5&ved=0CDoQFjAE&url=http%3A%2F%2Fmynewbeetle.net%2F7.1%2Fm%2Fvideos%2Fview%2FCustom-K-amp-N-Cold-Air-Intake-Sound-Ext-2003-New-Beetle-1-8T-GLX&ei=aO9xUP-sFsakqwHwlIHYBA&usg=AFQjCNGouImoKJ_IWvUygNP1NAAiH5vlTg&sig2=m8DLNpJkezsuhJttjaq2-Q
I do have to say, our SEO, IMO is there.. It's just what you decide to do with it..