We all know how expensive a new hobby can be, and there’s nothing worse than going all out buying the necessary bits and bobs in the first few months, only to see them go to waste. SO, before you go crazy, think about how often you will be using the machine. If you’re 100 per cent sure you will be using it regularly, this justifies investing in a more advanced tennis ball machine. If you are being honest with yourself and know that you won’t be using the machine that often, there is no need to go all out.