New Home
Since everything is new you do not need to spend any money on replacing/fixing anything
Your home plus appliances, windows, HVAC unit, and more come with warranties, so you do not need to spend any money on repairs
Resale Home
The equipment that comes with a resale home may be close to needing to be replaced which is expensive:
Flooring: could be up to $25,000 depending on what flooring you choose and how much you are replacing
Kitchen remodel: $25,000 - $75,000
The home may have maintenance, foundation or cosmetic problems that you don’t initially notice