What a realtor actually does for the fee
Pricing based on comparable sales, listing exposure to buyers actively shopping, showings, and negotiating on your behalf through to closing. That's real work with real value for a house in good condition with a seller who has time.
What selling without one looks like instead
A private sale (For Sale By Owner) still needs a real estate lawyer to close, and you handle pricing, marketing and negotiation yourself. A direct cash sale skips all of that — no listing, no showings, one negotiated number with one buyer.
The honest way to decide
A well-kept house with time to sell in a normal market usually nets more with a realtor. A house needing real work, or an owner who values certainty and speed over the top possible price, is often better served skipping that step.