PS4 Owners... is it worth buying it now or should I wait for it?

I have a question for the PS4 Owners.

I have made my mind that I will be purchasing PS4 over Xbox One. But I don't know if I should buy soon (I mean within a month) or wait.

BTW I have found some local stores that have PS4 in stock currently or have the consoles in stock pretty regularly.

What do you think? Should I jump the gun or wait it?