As someone who has used WinUAE for years and bought several Amiga Forever packages I can honestly say that if you want to play games and "feel" as if you're using a real Amiga (and AGA isn't an issue) then the Minimig is the only solution.
WinUAE certainly works, but the look and feel is missing. When it comes to using digital joysticks then the frustration factor just grows.
With the Minimig (once you've set up your core and PIC) it may as well be a real Amiga. You switch on, you see the "insert floppy" logo as per your Kickstart version and you insert your "disk" (ADF). I also love the way I can keep both of my digital joysticks attached thanks to the PS2 mouse.
Who want's to go through the ball-ache of waiting for your PC's OS to load, runing UAE, selecting the configuration, etc when you can just switch on your Minimig?
With Hard File support already working on the prototype ARM board, it will so be available to the masses and I'm ready to solder on my RAM expansion too.