I show a lot of homes each week to a great mix of wonderful people. Whether it's a couple, a family or an individual they all know what they are looking for. Couple compromise usually wanting different parts of a house to meet their needs, but most importantly knowing what they want. Some people have to have a garage or ensuite, others want a large kitchen or a large family room for there kids to enjoy...
I tell people looking to buy THEIR home that it's important the get what they need. If you want and ensuite off your master bedroom there's probably a good reason. If there's a good reason you don't want to live day to day without it.
It's so important for buyers, whether a couple, a family or an individual to make a list of the things they want in their new home, and to only look at the houses that have those particular features. Someone might argue that the houses they want with the "must haves" is out of their price range. There's a solution to that - look for houses slightly older and less expensive to save some money. Then you can have the things you want and improve them when affordable.
So remember, you are buying a house to live in long term. It's the place you're going to spend most of your time. Have those important things that make a house YOUR home.