Thanks for the swift answer chewitt.
The main things that tempt me to use the intel device are an inbuilt DVD player and an internal SSD (SD cards are the bane of ), drastically reducing the number of cable clutter and devices (although surface area taken won't be much different). Other "nice to haves" with the intel box are a proper on/off button and freeing up a Raspberry Pi for other projects.
It sounds like it might be worth a go, but I won't repurpose the pi just yet.