Having just had a birthday and received art things for my new hobby, I am aware of how much it could cost to start one. Potentially it is easy to spend out a lot of money buying things for beginners in any area, to then find that enthusiasm wanes and the money spent was wasted. It is therefore really important to make sure that you buy things sensibly.
You could buy items that can be sold if they are not used much so that you can recoup some of the value. You could buy cheaper things such as these beginners strings for newbs. You could rent things, if possible to try out before you buy. It is wise to start out with a few things and make sure that your hobby does develop into one that you will continue with in the long term so that you do not overspend. You will also find that as you get more experienced in the area that your new hobby is, you will have a better idea of exactly what items you need and these may be different to what you first thought. So be careful when spending do it in small amounts and in slow stages so that you have no reason to regret any purchases that you have made.