I have lived in a brand new home and older homes and I would pick the older home every time. It turns out, others feel the same way I do and here is why:
Quality Craftsmanship - Not only are many older homes built with better quality products, they also will built with more time and care in a lot of cases. Older trees were used for the wood, so they were less apt to have wood rot and older plaster walls were better insulating sound as well. Homes were built to last because families weren't as mobile as they are today. When someone built a home, they lived in it most of their lives.
Larger Lots - Newer homes tend to be larger homes with maybe more amenities, but their yards generally will be less remarkable because the cost goes into the home itself. Older homes can have larger lots because when they were built the turnover wasn't as high and land cost didn't go up so quickly. So, if having a large back yard is something that you need, you will probably be more apt to find a good sized yard with an older home.
Character & Uniqueness - Newer neighborhoods may be built by a certain builder which may use just a couple different styles of homes to be able to erect the homes more quickly, thus giving the homes in the neighborhood "cookie cutter" similarities. Some older homes may have similar styles in a neighborhood, but, the other features of the home may have been kept in tact which will appeal to some buyers more than a newer version of these features; such as original stained glass windows, crown molding or a sunken living room. Also, an older home may have older, established trees that will give the home more curb appeal than a new home with no trees or landscaping to start out. Some of these features take years to bring charm to a home.
Stable Community - Homeowners are generally looking for a good school district, places to shop and walk-ability in a neighborhood. An older home usually is in a stable, established neighborhood that will have a lot of those things easily accessible.
Less Expensive - On average, a comparably sized new construction can sell for 10% to 20% more than an older, updated home. While newer homes might cost less to maintain, they are also built with different materials such as energy-efficient products that drive up the cost of building them and, by extension, the cost of buying them. Sometimes you can get a really good price for an older home and with a bit of TLC, make it more up to date and suitable for today's modern family.
New construction can be beautiful, however, to have all the features you may want, you might have to spend a lot of money to check all the boxes, whereas an older home may give you all you need and then some for the same or less cost-- and who doesn't like a good deal?!--Jen Lush