Hiya - just trying to count my options here

if you need chains for nissan x trail the tyre it has is 225 55 18 - went to repco because they had a snow chain "sale" ... haha not a cent reduced of their chains so don't know why it was advertised in their sale mailer ... anyway it would cost me $300 for this size tyre for one pair ...

what other options have i got?

(we could also discuss merits of chains for all 4 tyres despite the manual saying "fit chains ONLY to front wheels")