Well, as a retail trader, you probably wouldn't need one if you don't use trading robots. Maybe I am wrong, but from what I have seen around, usually, people who trade with EAs look for VPS.

The main benefit of using a VPS is improved speed of execution of your trades. When trading with robots, you are engaged in high-frequency trading and you need lightning-fast execution speed and low latency. When you trade manually you place a relatively small amount of trades, and even if a slippage occurs it is insignificant. However, when you place a high number of trades, the slippages add up, so it is no longer an insignificant amount, and that's where VPS trading comes in helpful.