It isn't really a "Must Have" type thing. It is the fact that it is change. It is a major update to a popular software. Like a new iPhone. It isn't a MUST HAVE, but it is something people want because they can and want to. XF2 will be something new that will bring on all new things like new add-ons, new themes, and new possibilities. We the community won't know what XF2 has to offer fully until we experience it first hand when it is officially released.
I'm not felling it either. The main focus for the next few years is to make xf2 easier for developers to do their add ons. I'm not seeing anything that moves me as a customer (none coder) to spend money on an upgrade. So chances are it'll be 3 to 4 years before xf2 will be on par with what I have now add on/style wise with xf1.5