You're not alone. I feel bad about the release. It's ok that VMware release 5. But the problem is when you have version 4.1 , why you directly release 5 instead of 4.2? The Fusion 3 is release after Fusion 2.0.6 and I paid the upgrade fee. And then Fusion 4 is out after Fusion 3.1 and I paid the upgrade fee too. Thanks a lot VMware!
BTW, it only costs $29 to upgrade to Lion and $19 to upgrade to Mountain Lion.