I dont usually buy stuff on the internet using BTC but if there is a possibility then I would gladly buy some paintings or artworks for my house and office decorations. Even liked some handmade jewelries on this forum and will buy in the future.
Mate its good not to spend your bitcoins on this stuffs and try to save as many bitcoins possible for the future as you will find it really difficult in future to earn bitcoins and if you keep on spending them now then you will miss an opportunity to make huge profits in future.
Spending bitcoin is not bad for me, it can helps to increase the demand of bitcoin every time and also the value will increase too. But i agree that saving more bitcoin will gives you high profit if is possible to buy something with cash use cash on it.