It is essential to ensure that you invest money, time and effort first to that which ensures a return. After that, once a return on investment is in play, you can spend money on things you need or want. If you own a farm, this means get the fields ready to ensure harvest will come. You do not spend time and money investing in the farmhouse, only to have it run out so you are unable to buy seed for the harvest for example.
Put your outdoor work in order and get your fields ready; after that, build your house. Proverbs 24:27
There is a modern equivalent of course – invest in the value chain. Invest where there is value to be gained. Focus there. Luxury items are for later (if at all).