@holger80 -- note that steemd.com is using SP equivalents.

Example: 2,000,000,000 mana == 2,000 VESTS = ~1 SP

Rather than add more units (mana or VESTS), steemd is now showing SP-analog units for the Vote and RC meters. For instance a user with 15 SP vote power has a recharge rate of 15M per 5 days.

The benefit to showing costs in SP units is that you know exactly how much you'd need to power up for a certain level of interaction w/ the chain.