MorphOS is overpriced for US but runs on fastest CURRENTLY AVAILABLE computers, AmigaOS 4.x is priced comparably to big OSes but needs updating and runs only on expensive hardware,AROS has modest number of vocal supporters who apparently don't contribute enough funding to project to attract more talented programmers,......it looks to me if you want to run Amiga on PC ,then you just need to BUY Cloanto's Amiga Forever,which is very reasonably priced ,runs fast on PC hardware and even comes with classic games!
For what its worth,I have made small monetary contributions to (($10,I think) to Aros,Amiga Sys even though i don't use them,and have purchased several AF so can run on laptop and desktop legally.And it makes me feel supportive of overall Amiga scene.
I worry some want open or whatever only for free,but someone always has to expend effort and deserves rewards.