You don't want the best of the best, but you still want a decent microwave. In that case, choose a model with a mid-range build quality. It won't last as long as a high-end microwave, but still longer than a basic one. A mid-range microwave usually has a glass turntable on/off. In some cases, the table is made of enamel, ceramic, or metal. In those cases, it'll break less quickly.