1 - it wouldn't be suitable for me now (nor for the past few years).
2 - I remember there being a big differential in equivalently priced machines back then. One of my current work Dell workstations is a much cheaper option than this Mac, much better specced and I've had no issues with it for over two years.
3 - It's £800 for the thing, seems way out of line with inflation compared to what I bought then.