Originally posted by robert
I know everyone wants the latest and greatest but is it really that big of deal?
The operative word there is "want". Anyone who "needed" a full frame camera bought one years ago from another brand.
There are many reasons why someone might "want" a K-1:
1) Not wanting to be embarrassed when playing with the big kids with their mk 5DIII and D810.
2) A preference for the FF 'look' whatever that might be to the individual
3) A desire to have the newest camera available and show off the new toy
4) An expectation of somewhat better dynamic range
5) An expectation of improved ISO performance, ie less noise at a given ISO
6) A desire to use their vintage film glass as they were intended to be used
7) A need or want to print larger than what 24mp can print. Though that is more a need for more MP not necessarily a FF camera
8) Just supporting the brand. If you want Pentax to make more stuff, you gotta buy some stuff

9) Pixel shift on FF 36mp camera? That just might be amazing
10) They have complained about no Pentax FF for so long they either have to buy it or admit they are full of hot air

11) A belief that the K-1 will somehow improve their photography
And my personal reason: I want it. I've saved money in the camera budget for two years and I pre-ordered. Will I be amazed? Will I like it? Will I hate it? Will I admit APS-C is more than I can handle and sell it on? Will it make my photography so amazing that people will travel for miles just gaze in awe at my display? Who knows.