@paolone
Please don't be so belligerent. It was bad enough with MorphOS vs. AmigaOS wars, let's not try and start an AROS vs. AmigaOS one....
@mlankton
The problem is that the Amiga is expensive, that's a fact. But don't think of the SAM as being a computer like a PC is, it'll always lose. At the moment the Amiga hardware will always be slower and more expensive... but the point is a PC can't run AmigaOS (no, neither AROS nor MorphOS are AmigaOS). Think of it as being the only machine available that can run AmigaOS - which it is (at the moment). So it's only 800MHz? It makes little difference for most things.
If you want to get into the modern Amiga you'll have to bite the bullet, I'm afraid. But remember one thing - a loaded SAM system is much much cheaper than a high-end classic Amiga when it came out. In fact a loaded SAM is cheaper than an A500 when it came out, in real terms.
Buy a Sam 440. If you don't like it - sell it. The depreciation on them is tiny compared to most machines. I don't think you will though.....
(Incidentally I own an A1 G4 and a Sam 440ep and I have no intention of letting either of them go.)