yes it was worth it, despite the extra effort and cost I'd go again.
off the top of me head...
race entry - 80
licence/insurance - 50
fuel (car & bike) - 150(ish)
ferry - 44
euro breakdown - 75
grub/drink - 25
Dom's expressions on the cool down lap - Priceless!
so approx £420 for me, but that's without sharing to cost.