Yeah again with the same excuses.
If you want high OC you need a good board. That is the same for Intel K cpus.
If you want to do an average OC nothing extreme there are a lot of decently priced boards out there for the 8320.
So high OC mATX and mini ITX boards are a must I take it. This CPU is crap without great OC mATX boards boards. Again a senseless excuse.
OC doesn't require a more expensive cooler then the one you would use for an i5 or an i7.
Absolutely positively not.
And evidence like this, link and link, goes to show you that your choice of motherboard makes pretty much no difference whatsoever in your maximum clocks you are capable of achieving with Intel's "Z" platforms, and what overall performance you can expect. You could have an average $100 board do just as well as a $400 board for the greatest majority of people who plan on overclocking. Its not until you start getting down to pushing the last few Mhz out of your CPU, do you actually need ultra high-end boards.
Even back on Z77, something like the Pro3 ($89.99), or the TZ77XE3 (~$100), were capable of maxing out the common overclock of a user on an high end heatsink. And you are talking about the 4.6-4.8Ghz range. And those were cheap boards.
With AMD's side, I can guarantee you that if you choose to put an FX 8320/8350 onto a Gigabyte 990FX-UD3, you are looking at a blown up motherboard if you try and overclock too high (4.7-5Ghz+ range).
To counter another point, many users don't like to build the "biggest/baddest boy-on-the-block" rig. Even a mid-tower is too large for peoples' taste. SFF is becoming extremely popular because of the immense power you are capable of fitting into a ridiculously small rig. AMD just doesn't have that offering at all. Solid mITX/mATX motherboards ARE a good thing for a CPU, since its becoming a quite large market. AMD doesn't have that.
And to counter your final point. a low end CPU cooler like the Hyper 212 Evo is capable of getting the i5/i7 towards the 1Ghz over stock range in terms of overclockability. Same cannot be said for the FX-8320/8350. You are going to want a heeeeeeefty CPU cooler if you'd like to be hitting the 5Ghz mark. And unlike what everyone on OCN seems to think, the FX-8350 isn't anywhere near guaranteed to hit 5Ghz. Most stop at the barrier of around 4.7-4.8Ghz.