I do not believe there is any law requiring companies to keep parts for any period of time at all. Maybe you're thinking of the six year law where in England (five years in Scotland) you can actually claim against defects for up to six years after purchase. However, there are various interpretations of how long is a reasonable time for a product to last and so most companies end up getting away with one or two year warranties - but technically you could claim up to six.

Also if there were any such 'spare parts' legislation it would start from the end of manufacturing, not availability. I'm not sure when the Variax ended production, but you couldn't expect ten years of spares from when you bought it, but from when production ceased.

Again, not trying to be a d1ck about this, just pointing out the cold hard truth of business and commerce. It may not be right and in fact the EU wanted to reduce the six year law for reasonable life expectation on goods down to two. I'm not sure if this ever went through but is another example of how brilliant things are for Brits in Europe (that's one for an OT political thread though ).

What you're experiencing isn't unique to Line 6, it's just that it's obviously affected you - for someone else it might be a TV, another a washing machine, another a synthesiser.

So sadly, the best you and the others can do is tell Line 6 of your feelings on this matter (maybe you already did?) as I don't think there are any laws that cover this area, so there is no legal redress. Maybe get them to push the boat about a bit and check their other regions (especially US) for spare parts, although you'd have to pay P&P and tax, so it might work out uneconomical.

I hope you can find some solution to your problem.