Q.I Want to Find a Replacement for a Grass Lawn
I moved into a new home in a new subdivision (June 2011). Grass sod was put down. What I thought would be nice grass has turned out to be weedy and full of crabgrass. I will be speaking to the builder. I’m just wondering if I should take this opportunity to try something different. Since I’m really not fond of grass, is there something I could put in place of the grass that would look like grass but would be very, very slow growing grass or even artificial grass (something like astro turf)?

Certified GKH Gardening Expert
There are some nice artificial grasses out there today. You can read a little more about your options with that here: https://extension.colostate.edu/ptlk/1537.html
There are a few option out there for living lawn alternatives. Which you use will depend on what you are looking for and how much traffic your lawn gets. Here are some options: https://www.gardeningknowhow.com/lawn-care/lawn-substitutes/lagen/using-lawn-substitutes-for-your-yard.htm
There are not many lawn alternatives that have the look and the durability of grass, though. If you are looking for less care, you may want to look at zoysia grass. It is aggressive enough to keep out weeds but grows slowly so does not need to be cut as often as some other grasses.