Intel i5 2500K

I would like to get a Intel i5 2500K as it performs better than any other AMD processors, but my current budget is £126 so I can’t get a new Intel i5 2500K however I can get a used Intel i5 2500K, but will there be any negative points of buying a used CPU?
Answer #1
Not really.
Answer #2
As long as you can trust the person who you’re buying from, there should be barely any (if any at all) differences to buying a new i5 2500k.
Answer #3
Why 126? It’s such an odd number.
Lower lifespan, possible crashes, random overheating for no reason and other functionality issues, but that comes along with all used products.
Probability of that happening is low though.
Answer #4
You could save a little (£5 to £10) by getting a Intel i5 2500 vs i5 2500k if you don’t plan to overclock.
You might save a little more (£15 to £20) by getting a i5 2500k OEM vs retail; if you settle for a 1 year warranty vs a 3 year.