I had hoped someone would have a compelling reason that I could convince my girlfriend with, but she wins due to the increased likelihood of being able to sell the house easier with a bath.
Happy soaking!
We have a standard-ish sized bathroom for our 3bed detached house, ie it contains a standard 1700mm bath, loo and sink, with just enough room for a mirror above the radiator and also a small cabinet.
We want to get rid of the horrible 80's green suite and have a nice simple white one instead...