I don't know why anyone would have buyers remorse for either console, their gonna last ya about 5-6 years if they don't RROD.
For the cost, both consoles offer value for money considering how long they stay relevant. In terms of console VS consoles, I much prefer the PS4, The Xbone just seems to current gen for me to consider buying one myself. Whereas the PS4 has that next gen feel with the stunning Killzone and superior versions of some multiplats and Black Flag in particular, which is gorgeous on PS4.
I do think the games will improve on Xbone with time, and there is always the power of the cloud which Microsoft keep touting about. So yeah all in all either console will serve you well for the next 5-6+ years. Nothng to have buyers remorse over imho, graphics cards are things to have buyers remorse over, outdated every year