If you are expecting to drive in snow a fair bit I would. The chains only work really when there's a couple of inches of snow if its patchy they will quickly become knackered. If you take them off if the roads not clear summer tires won't grip very well. When we moved to North Yorkshire I had all season tyres fitted a lot better than summer ones not quite as good as snow tires in the snow. Of course there has been no snow yet!!!Do you still need winter tyres if you carry chains??