Often when going through certain homes with clients, they will fall in love with the decor of an owner. What I notice often, though, is its not the homes with the expensive Restoration Hardware set, its the well-curated homes that sellers have created over years. Its the homes with, sure, the West Elm sofa but the antique dresser and found oriental rug and 20+ years of art collecting over an Ikea credenza.
Its the mix of a well-loved but finely-curated home that often catches a buyer's eye. Its a look that they often can't describe or put their finger on because it wasn't what was recently in the Crate and Barrel catalog.
This is the beauty of "high-low" decorating. Mixing styles for an eclectic look, sure, but mixing pieces of found art and furniture with the budgeted-for purchases. It makes for a layered, well-thought out look that is hard to achieve with simple online shopping and thus is often coveted.
I try to do this with my own staging, mixing in a few one-of-a-kind pieces and antique furniture to keep it looking like an Ikea/Wayfair advertisement.
Read on for some great advice from around the web on how to pull off the high/low look (but remember, it might just take time!):
https://www.styleathome.com/decorating-design/high-or-low/article/high-low-cozy-breakfast-nook (a whole string of high/low examples and while they often are about how to get a look for less, they often feature a high-low mix regardless, like this Ikea banquette with updated lighting and found art)