Why do I want a FF D800E ?

Please, help me understand, why do I want so much to get a D800E ?  Part of me says, I won't be satisfied until I get on of them, but the other says, why ?  :

1. I want a FF D800E because of the Wide Angle advantage - but my DA15Ltd give me all I'll ever need on an APS-C sensor, so that's not it.

2. I want a FF D800E because of the Pixel Advantage - why... in the past 6 years, since I got my K10D, I have not printed one single image larger than 8x10.  Yes I'd like one large print on my wall, but... one... is all I want.  With Fractal enlargement, even 10Mpix is enough to get a 6x9ft image, my wall ain't large enough as it is, beside, I can't justify that cost for one single image ! Beside, even a new Canon FF 6D is only 20Mpix, hardly more than a K-05, so that's not it.

3. I want a FF D800E because of the high ISO advantage - wait... a K-05 can give me a noise free image at ISO 1600... how much do I really need ?, so that's not it.

4. No now I get it, I want a FF D800E because of the narrow DOF... well, IF I'd buy such a camera, I'd also buy a 24-70/2.8 zoom or anything else in the same line of thought.    Well, a Pentax 50 f/1.2 can certainly match that close enough as far as DOF is concerned, beside, I shoot mainly landscapes... so that's not it either.

5. Oh, I get it, I get a nice large viewfinder... yes !  That's it... nothing matches that in APS-C, but then, why ?  To use my Manual Lenses, yes... that's it... but wait a min.  If I get that Nikon camera, I've got none of those great Pentax manual lenses !  I'm stuck with all I can afford, a Body + a good zoom....  I guess that's not it either...

6. Now I get it, I get these reaaally sharp images, no AA filter... wait a min.  The K5IIs doesn't have an AA filter either, and really, do I need my images to be any sharper than that ?  I guess not... darn... that's not the reason either...

I do like the small K5 body, small lenses, nice features such as multi-exposure, not available on the Nikon, but I still want a D800E... but why ? Please help me... I can't figure out why I want it, but I do... !

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Roger