I think getting what you want is the bigger deal. I have been looking at houses and had friends who had to move due to hubby's job transfers. Each and every one of them had to completely redo their homes and they looked horrible after they did what the Realtor told them to do.
One friend had a beautiful kitchen that had one wall painted dark green, behind the top cabinet on over the one counter below. A very minimal amount of wall space in this kitchen. It was very much just an accent. The Realtor told her it was out of style, her kitchen had light colored ceramic tile with a very faint ivy leaf and vine in them. The Realtor "ordered" her to paint the 3 walls of her kitchen burnt orange...disgusting. She also had her paint the rest of the rooms that came off the kitchen a warm, muddy looking cream color. It was the ugliest house I had ever seen at that point. I would have told the Realtor that it was ugly and needed to be repainted before I would make an offer on it. It was that ugly.
She also made them replace all the carpet in their house. It was a very good carpet and not in bad shape. Her reasoning was that is would cost about $5000 and bring in over $20,000. No one liked the Realtors choices and their house didn't sell for as much as they thought.
I think if you have what you want and don't plan on moving int he next 5 years that your appliances will be well used and if you choose to replace them for a move then it's time to worry about that. I don't notice brands and things as long as they blend will with the decor and don't stick out as ugly.