The renewal schema of WBB is one that is more exspensive then XF or IPS because you can skip without paying more. XF and IPS need to do more to keep customers no new improvements is no renewal fee until they do. WBB can go watch moss grow and when they release a new version it does not matter because you always pay for that version if you skip him. Thats one of the reasons i never bought WBB because the renewal schema was expensive. Luckelly i checked before buying anything from WBB.