I tend to want to spend at least some of my crypto. Crypto has a big future but you never know, all the current coins could be worthless one day. Besides, if you aren't going to spend it, what's the point? For Steem I do the 50/50 split on posts and tend to keep most of the liquid steem liquid so that I can spend it when opportunity's like this come up :).

I think the only other thing I've bought directly with steem so far though was a few silver coins.