What should I do? PS4 or capture card?

Recently I made a YouTube account and I'm going to record videos obviously. Should I buy a PS4 to record videos with because it has a built in capture card or is it better to just get a regular capture card and record of my ps3 because I don't think I can wait until August 29 to play minecraft.

On one hand, while the capture feature is good for the PS4, it can only capture up to 15 minutes of footage at a time, and there's no option to download from your PS4 straight to YouTube. Which means you'd need to have a USB card to put it on your computer and then to YouTube. Although, Sony announced at E3 that they planned on adding a YouTube streaming feature, so that problem will be solved. But on the other hand, capture cards are expensive, and the PS3 is going to become increasingly irrelevant as time passes. In the long run, I think it would be wiser to buy a capture card for your PS4 instead of your PS3, because PS3 maybe has a year left in it before it loses Sony support, and the PS4's default capture system is badly implemented.