I have a mixture of house plants, flowers - real and fake.
I mix real with fake.
In the bathroom I have a spider plant and then I've added fake ivy to it. The ivy runs down and around the corner unit. I did this because, although I love ivy, it can damage the walls with it's suckers.
I have some sunflowers in old lemonade bottles on a shelf in the kitchen and about once a month, I give them a "shish" in a bowl of hot soapy water. They dry really quickly and come up like new.
This is the first year I will have a door wreath and I'm planning on adding flowers,leaves etc for the seasons and special celebrations.
I've also brought/seen really expensive fake flowers/plants that look awful. But I've also found some of the cheapest to be brilliant.
If I really love a plant/flower then I try to buy one and because of the way most nurseries start their plants (3-5 seeds per pot) I normally split the original plant and get a few more extra.
Currently, I am waiting/working on a mother in law plant that I got reduced (26p) from Asda last year. It looks like I will get about 6-10 plants from it when I repot her when the weather gets warmer.
Great as gifts and I donate quite a lot.