To me, tablets are just something to let you compute more in more places. They don't replace PCs by any stretch, but are an add-on. The primary advantages, as I see them, are: 1) You can take a tablet with you to the crapper. True, some people have been using smartphones and even laptops in there, but a tablet has the proper in-between form factor. 2) A tablet can offload some activity from PCs, keeping them fresher and snappier. PCs "wear out" for both hardware and software reasons, such as HD fragmentation, garbage files and services, malware, etc.