@ HenryCase:
First off, I stated that 300$ was my price and that I was probably in the lowest echelon. So, let's compromise and bring the price up a little higher. How about 400$? That's a reasonable price, on par with what's available, reflecting the Amiga's reputations as a failed platform. So, with that as our baseline, it's not that hard to fill. Steve at ClusterUK managed it. Yes, I know AROS is free, but at least Steve is funneling funds back to AROS development.
And then, there's models like this:
http://configure.us.dell.com/dellstore/config.aspx?oc=bv1cs3ao&cs=04&dgvcode=ss&c=US&l=EN&dgc=SS&cid=52103&lid=1342491
Or this:
http://www.bestbuy.com/site/Compaq+-+Presario+Desktop+/+AMD+Athlon%26%23153%3B+II+Processor+/+2GB+Memory+/+500GB+Hard+Drive/1254175.p?skuId=1254175&ky=1whxm51gbOgORrn6M8JOUlLjDtR0yY7Rx&cmp=RMX&id=1218243229976
Or even this:
http://netbookprice.net/price-comparison/acer-aspire-one-532h-2588/
Add 150$ to those models and you still have a pretty reasonably priced (and performing) system. All Hyperion has to do is pick one and support it.
There's a small matter of porting OS4 to x86 before they could support any of those systems you outlined. How long did it take to get from 68k to PPC? Also, consider when that move was made that the market for Amiga was bigger than it is now, potential ROI is even smaller than at the time of the original AInc/Hyperion/Eyetech partnership.
But that's where you're wrong. x86 *IS* an option, it's just not the best option given the hole that Hyperion has dug themselves into. Still, getting out of that hole and digging a better one (more likely to find water) is better than just digging the current dry hole deeper.
What do you propose would cover the cost of moving OS4 to x86? Perhaps a bounty could be set up where we pay the Frieden brothers a living wage for the next few years that it takes to port it. Oh wait, the cost would be astronomical... yet, that's what it would take. OS4 wouldn't be generating much income in the time it took to move to x86, plus you wouldn't be looking at new features, just moving to a cheaper platform. Let's say they both earn $40,000 a year (which is conservative), so x2 for the both of them, $80,000 a year, and let's say it takes 3 years so $80,000 x 3 = $240,000. Now can you seriously imagine the Amiga community generating a bounty of that size when the largest ever Amiga bounty was less than $12,000 (Amizilla)?
Or perhaps, some wealthy outside investor wanted to make it happen. So using the estimate of $240,000, how many new AmigaOS4 owners would it take before the investor saw some financial return? Let's just say that they sold each copy for $100, that's 2400 copies of an OS assuming the cost of distribution was 0 and all the money went to the investor. Sounds reasonable enough, but wait... there's no software for this new OS because all the old OS4 software was written for PPC. Plus, three years have passed and AROS is looking better than ever, is free and open, and supports more hardware.
But, as Kolla has already stated: "I would recommend doing what the MorphOS developers did - that is, release OS4 for old powerpc macs." To which I'll add, I just invested in a used PowerMac (150$), when I invest in MorphOS (150$) then the cost of ownership will be: 300$. Which is more than Hyperion is going to get from me. 2 grand is a whole month's worth of living; I ain't giving it up that easily. 
And, as I've already pointed out: "if it must be PPC, then xBox, Wii or PS3." Lessee... Wii is 200$, so we're talking minimum price of ownership: 350$ and, I dunno... through in a keyboard and mouse for an additional 20?
The options are there even if people don't want to hear them.
Moana had potential, it is a shame it wasn't pursued, but even if it was completed you'd still have some Amigans complaining that it was the end of the road. As for consoles, they're closed systems, yes you can hack them but I wouldn't base a commercial OS around exploits that can be closed at any time.