I have a 770. its my backup to my MJE as of now. I used it as my main VOX mic for hip-hop for the last 2 years. It did the job, and frankly, alot of my stuff sounded a whole lot better than some of my other friends using boutique mics like TLM-103s etc. Frankly, I think the difference is because I spend so much more time on sites like these and trying to improve myself on the front end in a mix. If you know what you are doing, you can get AMAZING recordings out of a SM-57/58. Its the engineer, not the mic. Sometimes a 70 dollar mic in the right context is the best mic. These are just tools. They all do the same thing, the difference between a 770/v67g and a Brauner VM1 is a whole lot closer than $5,800 dollar price difference. And with the right plugs and more importantly engineering knowledge, the vast majority of people will never know the difference.
"The Second Best Thing You've Never Heard Of" -Ham San