TheGoldenBoy on 23 January 2016
I'd say get the collection first. I didn't get to play any of the Uncharted games last generation and playing the collection really hyped me up for A Thief's End. There's also the fact that there looks like there will be quite a few easter eggs for the previous games and it would be nice to at least know them before hand.
Also, the collection is three great games for the price of one and you have plenty of time (more than 3 months) until Uncharted 4 releases. If it's possible you could try and save up for it if you're determined to buy it day one.
