I've stopped buying and waiting to see what happens with the block size...
I am buying bitcoins too, reason being I pay my friends and everyone in BTC ( for whatever work or service they offer ) . I think we all should encourage everyone we know about bitcoins and its uses, hence spreading awareness about Bitcoins...
Yeah that is the good thing to do, as buying now is the best option available as if you buy now and sell at the time of halving you can expect higher accounts.