I bought a set of, quite worn, probably unusable irc kujo dh tyres for less than £10 posted, will I use it? Probably not, but if an opportunity is there like that then I would buy it, and then if you don’t then you can sell it on.
Questions here are: do you want it? Yes do you need it?
But there have been many times where I was thinking “no! If only I bought that (insert name here) a few weeks ago”