From the feedback we got last year, we know that our old price list was very complicated for people. Being able to buy each part on its own may be a way to have the entry lower, but still it confuses users. Also the seat counting can give strange problems from time to time. So we now give 5 seats as the start point.
So for our upcoming 2.0 release, we have this price setup: 5 seats for 99 Euro, 20 seats for 199 Euro and 50 seats or redistribution for 399 Euro. Updates 50% as before.
Older license will be upgraded (or downgraded if you need) on the next update to fit the new schema.