This is a problem. We are moving house soon and I only want to consider houses with en-suites.
It's the same on holiday, if we get a house/villa with friends I won't consider going unless we have an en-suite.
It's a privacy thing mainly. I have colitis. I also get up to wee 5-6x a night 
We have guests a lot and PILs stay for a month at a time. I feel sick with horror at the thought of us all sharing one bathroom! Urgh.
I don't mind sharing with DH/DS but not with friends/extended family!
And a separate loo/extra loo downstairs doesn't give the same level of privacy.
DH thinks I'm being VU. Am I?