If you build it do they come? That is only in the movies, you need to give to get and finishes are where the give is. Fancy paint colors, design fads, these are items to stay away. Working in the Northeast you see design styles earlier than you see on the west coast or southern states. Black windows for instance or waterfall countertops have been around since the early 2000s and we are 10+ years past that design style, black windows work in a modern design home or in a metal frame older style window. Modern Farmhouse… OMG Stay away!
You need a design most people will love, not to heavy and not skimpy. Design style, colors, textures that a majority of people will like. They can customize somethings after the purchase but you want to stay middle so most will be happy with your choices. Busy moldings, weird wood on walls, crazy paint color to create a feature wall, save those designs for your own house. Keep your spec house clean with room to add. Saving money is great and you need to, but keep in mind what your sale price is. Maybe a $1.10 sf floor is not going to look great in a $1.6M home. Same for a $8.50 sf floor in a $300K home. You have to find balance and you should one up your competitors in your price point but just do not over or under do it.
More to come: firstname.lastname@example.org