I'll set the cat amongst the pigeons by declaring that we have stuck with the same melamine set that we bought for our first van. I swear the plates and bowls retain the heat from hot food, keeping the food from going cold, and we have never had a bad cup of tea from our now badly stained cups. The other half also glugs his wine from plastic beakers from one of those cheap shops. I don't drink wine, but I do drink milk and pineapple juice ( not together), but don't really like drinking them from plastic beakers. I have been told I'm an oddball when it comes to eating and drinking habits...
