Hi, I have a question about upgrade paths:

I'm going to be upgrading from version 2009-ish. I'm having a hard time deciding between the MegaPak (at $159) and the UltraPlusPak (at $299).

My question is whether there is a lateral upgrade path from the MegaPak to the UltraPlusPak. In other words, if I buy the MegaPak, and decide in several months that I really would like the UltraPlus, can I do that without having to pay the whole $279 (lowest upgrade I could find.. from v.2012)?

Thanks!