Interesting new 37signals method of getting Highrise users to upgrade their accounts. A limited production, get it before it’s gone, type sale.
I think this sale would be much more effective if they said 20% off for life or at least a year, for the first 100 people. Then even if you don’t have a need for an upgraded account right now, you still might go for it, thinking “well, we *might* need it soon”.