A counterpoint - if having style increases the variance of liking the property, then with increased variance, there will be more people who really like the property (and thus be willing to pay more).
Put another way, 4 people moderately interested in the property will probably yield a higher price than 2 people that are very interested in the property.
This is especially true in luxury real estate, where buyers go in looking to substantially change the property. They expect to bring in their own architects and designers. The staging is just a canvas.