Emulation like WinUAE or a system like AROS are VERY useful
UAE runs on so many systems, that it's irrelevant that it's in AROS or not.
I just said in this thread that I put AROS on a flash drive. (...) don't underestimate the possiblities that AROS provides. Open your mind.
I have a open mind. You've mentioned AROS on flash, but BasiliskII/SheepShaver with MacOS7.6.1 running on a flash is much more useful and flexible than AROS with UAE.
AROS IS REALLY COOL, but not useful until it has some really good software.