We were once on a cruise where a port strike forced a deletion of St. Lucia and a substitution of Martinique. Oh, yeah, there were gripers, but we just went with the flow. After all, we had never been to either place at that time, so we had nothing we knew of to gripe about! Martinique proved to be a delightful port. On a later cruise, we did make it to St. Lucia, and frankly wished we were back on Martinique! So not all itinerary changes are bad.