Should you choose a web hosting plan that is larger than what you need? You shouldn’t really choose a web hosting plan that features more memory and disk space than what you need right now. If in the future you need more disk space or memory than you can decide to upgrade later. Starting out with the right web hosting plan can save you money. You can later pay for addon’s or upgrade to a more expensive web hosting plan if you want.
If you decide to start out with a larger web hosting plan than you really need. You would have a lot more resources to use when you have to but you will end up paying more for resources you may not use. The decision is a personal choice but it is recommended you only choose a web hosting plan that fits your needs.