Buying a notebook now is very different from before. Notebooks in the past had relatively low performance, so consumers paid more attention to performance when purchasing. However, nowadays all notebooks come with dual-core processors, and performance is no longer an issue. The biggest problem now is weight. Notebook is synonymous with portability, but how many notebooks are truly portable? There are plenty of notebooks on the market that weigh 2.5kg; they're like a big brick. You wouldn't normally carry them around. If you insist on carrying one, the consequence will be sore shoulders, and after one or two tries, you'll give up. After that, the notebook loses its meaning of portability and ends up staying at home quietly like a desktop computer.