This game: Crash physics vs NASCAR '14

[Slippy]

So i've watched a few nascar crash videos on '14 and '15, and i've seen mostly '14 with the flips. The only thing is how NASCAR '14 is now a whopping $39.99 for the game code.
I know that's the same price as Nascar Heat 3, but I don't really like the new Heat series.
Should I get '14 for the crashes? (I mostly focus on them)

[FeNyX6]

'14 is better than '13 but has a few quirks and AI is a little off, but most tracks very playable and enjoyable. '15 the AI is better overall especially at the plate tracks with the Victory Edition updates but the 2nd race at Texas is bugged, 20+ cautions in a 1/2 length race more the norm, as cars wreck off turn 2 and 4 hitting that shoot across the track spot way too much. But still more playable and enjoyable than '14. Of this series '15 the best choice as the most evolved of the entire series even with quirks. (All experience is in Championship mode for all games and Half Length to 2/3 Length, longer tended to crash on me)

[Murph]

'15 is certainly the best choice due to it having the strongest player base of the three eutechnix games, however it is more difficult to find now days, but when it is available, it is usually like $10 which is a much better deal than '14, all three games are very similar when it comes to crash physics but i would suggest '15, simply because it's more updated and is cheaper.

[Slippy]

Thanks!
Although I am envious of crashes such as this -
https://www.youtube.com/watch?v=cPHWjD5q6e4
I mostly only see these in '14, not '15