If they had the capital to hire enough developers to bring it to a state where it had a reasonable hope of selling to a wider market, then they could move to x86 without too much risk, but as it stands they risk alienating a significant chunk of their core market without gaining enough new users if they try to make a switch.
What people don't seem to understand is that what we have now can hardly be considered a market. What we would gain by targetting a real "market" is so much more important than even loosing everyone here...
There are maybe a total of a thousand users (and I'm really optimistic).
Apple, which represents maybe 7% of the market, sold 4.18 Million Macs in the first quarter of this year. That's 46 444 machines *a day*. Compared with a thousand machines *a year* for any Amiga machine. And there's four quarter in a year.
So yes, I shouldn't compare, blabla... But imagine Amiga was producing and selling 10 000 times less machines than Apple. That would represent 4 machines a day, so 360 machines a quarter, which is already more than a thousand a year. And here we go, we already have more (new) users than we had before... And that's by selling 10 000 times less than what Apple does... We can surely hope for more...
We know what will be lost. We don't know what will be gained...