Dammy, you are wrong about SAM's needing UAE for legacy programs across the board. Don't let your love for C-USA obfuscate the truth that OS4 can indeed run older Amiga apps just fine in some cases with no emulator required.
Don't mean to pick nits, but comparing a SAM/OS4 to a C-USA EmuMiggy is apples and oranges to some extent. Unless C-USA has done something remarkable in a matter of months, you're looking at 100% emulation. SAM's and OS4 can run old SW natively, to some extent - sans addon emulators. The C-USA boxes are commodity/emulator x86 stuff, and C-USA have never claimed otherwise, to their credit.
The SAM's can run a fair chunk of older legacy Amiga programs without ever touching or installing UAE. I've never had to bother with UAE on my SAM, but I am not much of a gamer on it. I run a BBS off my SAM using an oldie BBS program designed for 68k systems with very few issues, no emulation involved. As a SAM owner (440, however) - I have not tried too many games, but I've had very, very few problems running utils/programs (non games) natively unless it bangs hardware, which it obviously won't find on a SAM. There is some native support for older programs on OS 4.x without the need for UAE, the same cannot be said about the C-USA machines unless they have banged out a native, legacy compatible OS in a matter of months.
That being said, I would not under any circumstances buy a SAM if you are looking for something to use for running oldie games. They simply are too expensive, and commodity x86 hardware and UAE can do a far better job running old games. Or A1200's are cheap.