If you would give me 10 free bitcoins if would wait a bit for the price to go up a bit and I would just sell them. Free bitcoins means free money and it would be quiet some money.
I am not sure you will do it later if you received 10 bitcoin freely, I am sure people will cashed out more than half of total 10 bitcoin.
Because I will do it too, cashed'em out 7 btc and 2.5btc for future investment such as for trading and 0.5 for having fun spend it online to shop and gamble!