how long is worth repairing a washing machine for?

I have a hotpoint WM63p wash m/c
it has a broken drum spider and a damaged drum retainer. ( as the drum was moving outside of its normal orbit due to damaged spider ( cracked) it has worn part of the drum retainer
parts cost £80 machine is 5 years old and been stanfding unused for 18 months as dampness in case caused electrics to trip , probably due to damaged drum retainer.
should I dump it or fix it. Cheap m/s cost 180
another good machine =£300

Chris Henderson
July 2009