I would have to say that most things in that list a majority of people buying the ODROID either have or don't need. Also you can look at the ODROID-U which is 1.4Ghz, down from 1.7Ghz of the ODROID-U2 and 1GB of ram compared to the 2GB in the U2, but otherwise looks the same. Its $20 cheaper.
As far as a list is concerned:
1 - PSU - That's needed. You might be able to hack together one from an old (not too old) cell charger. Pretty much all portable devices charge from 5v usb adapters, just need to find one that outputs 2A and possibly change the connector. I know this is beyond the scope of most and really your only saving $9
2 - Probably best to get the eMMC but if you were to get the "right" SD (one with fast random 4K reads) you would probably be ok for about 1/2 that price. the Raspberry Pi and many other devices have to/are run off SD
3 - Being micro HDMI most people I would assume don't have as many floating around as normal HDMI. But you could probably find it cheaper also.
4 - Wifi - I avoid wifi as much as I can but some people need it.
5 - Probably ok without it.
6 - Everyone with a cell phone made in the last 3yrs will have one...Not sure why you would need it though?
7 - Most people probably don't use the remotes that come with cheap hardware, and if you do I'm sure you would upgrade quickly after using it for awhile. Also a quick google says hdmi-cec support is coming, its capable but they are working on the driver:
http://odroid.foros-phpbb.com/t1103-cec-...-over-hdmi
8 - Shipping, can't avoid that one for most devices like this, android boxes like the xios are more readily available at local computer stores (at least here) would be the exception.
You kind of have to keep in mind this is marketed/made as a development board. Things like the PSU and all the additional accessories that are needed normally aren't included. Just mentioning for comparison sake. Example the Raspberry Pi.
The "bare minimum"
ORDOID-U = $99 + 30 shipping
Raspberry Pi is 35+8(PSU)+12(SD CARD)+9(HDMI)= $64 + $25 shipping
Better comparison though is bare board to bare board
Raspberry Pi - $35
ODRIOD-U - $69
You get a lot more hardware for that $34. Current support though I think the Raspberry Pi would probably win.
Also not sure how fair of a comparison this is but a mini-pc, my zbox for example is/was about $250/300 for a 1.2ghz dual core atom. A quad core 1.4 ghz for a $100 is pretty good. Though you have to keep in mind (re-reading the title of this thread) this is an ARM processor and correct me if my wrong isn't as universally compatible as an x86 chip, its not really a "pc"
I do hope something like this will be a good viable option for a fast and relatively cheap xbmc device that will run a heavy skin like Aeon
fast. And possibly kill the need for mini/low power pc's being used for HTPC's. Not saying those or more power pc's don't have there place as a HTPC.