No I'm not buying bitcoin, I always earned bitcoin and get it by simply joining in the signature campaign which has a potentials ico. and sometimes I applied bouty translation of language.
There are many people who are only earning and not buying, but to take bitcoin's price to higher level we need to invest our money in it by buying for the better future of bitcoins.
Indeed when we just earn it we keep the same bitcoin in the loop but we have to buy them for the price to increase and the bitcoin economy to improve.
I buy bitcoin for this reason and the reason that I rather have bitcoin than fiat and I think bitcoin wallets are more safe and relaxed than paypal/banks.