i spend my bitcoins. but only for digital goods.
e.g. my vpn accepts BTC. andi bought some apps with BTC.
I never spend any of my Bitcoins online or at stores. The reason why I do not spend them is because I can make money with them, if I want to buy something online I'd rather use paypal.
PayPal does not work with all people as they do not support some countries So that those people will use bitcoin to buy online.