It's your house, so you should enjoy how it looks. If the master bath is the one you'll be using the most, I definitely think it should look pretty! But a bathroom's tiling is nothing worth an argument, so maybe wait until the dust has settled more and your hubby isn't so stressed. Who knows, maybe even he'll start to agree with you and think "the rest of my new house looks so nice, why does my bathroom look like crap!"