Looking for my first split

Firstly I apologise, I'm sure this has been asked so many times but the information out there is quite overwhelming.

I'm drawn to splits purely from an aesthetic point of view but I want to see if I can reap the benefits of swapping to one.

I'm mostly going to be using it for work programming.

I currently use 65% keyboards and I have no other requirements other than it being if possible, very cheap to just try it out. Is <£100 or even <£50 achievable?

Thanks in advance!