If it's not considered a "fixture" and not
specifically addressed/detailed in the contract, then then it's probably not worth fighting over.
And, unless you are present when the box is opened, you will likely never know the extent of the contents anyway.
This is why it is always a good idea to include a detailed and itemized breakdown of ALL additional personal property that is to be conveyed with the sale.
Same goes for items that do
not convey with the sale (and/or items that are to be removed prior to close).
The standard AAR contract here in AZ has a section carved out to address this very issue.
If any/all of the personal items are significant enough to impact the purchase price and/or are being used as an incentive/enticement, then it's a good idea to write up a separate purchase contract to address those items.
Lke when you see things such as "free car included with purchase" for example.
If you have any questions, give me a call...