I'd have to say 1million was the best for me. Every million after that is great too, but reaching 1 million was far better. I think 5 is really good too and 10 will be even better. I think users reaching those milestones with just a few rigs is fantastic! and show a lot of heart and dedication! But in the end it's greater for me to see those members reach big milestones then reaching them myself.