Why only 8kb per page?

I just want to know how they came to 8kb when striking a balance between: smaller page = more page splits bigger page = longer to look through to find value I expect there are many more pros and cons to having a bigger page but if we could start again would we pick 8kb again? I'm not saying it's the wrong decision and I know it would be a massive change to the product to alter the size. Also I know 8kb was chosen a fair few years ago now and I wonder does it still make sense when rows are likely to be longer now due to new data types?