Honesty we all really don't know if it's expensive. Say today 2400$ is expensive tomorrow it goes 3 or 4k.we will say we missed the bus. The only logical thing to do is buy little little daily basis. Earn from contests and signature campaigns. That's the only way now. Buy satoshi's not Bitcoins, be wise. Keep a fixed amount daily to buy. And regularly keep on buying it and wait for the miracle and when you get rich well just enjoy it.