Too long for a Comment.
At around $2.50/sq.ft (+ delivery, installation, infill ....) artificial grass is not (initially) economical but is reckoned to pay back in ~6-7 years. More details in GBP. The tendency is for the highest prices to be for the products that are most lawnlike (eg variegated colour, size of 'blades' and springiness).
The high initial cost is partly because the product can look quite realistic (just a bit "too perfect"!) – not at all like AstroTurf (except perhaps if seen from an aircraft).
Even weeds will grow in it (but are easy to remove), adding to the appearance of the real thing.
The prevalence of grass (or slabs, tarmac, paving …) is indication that there really are not many alternatives. Chamomile lawns do exist but they are not durable in areas of heavy traffic and are not completely free of maintenance even where the location is suitable (for soil, moisture etc).
Given that the cost is mostly upfront it might be considered a property enhancement rather than a liability at time of sale of a house – cutting the grass is not the preferred activity for most people!
Life expectancy should be at least 15 years (of little or no weeding, no watering/sprinkler system, no need for a lawn mower/fuel, ...)