As a longtime apartment-dweller, I’ve found that the visual weight of a piece of furniture can really influence how big it feels in a room. It may technically fit, but it’ll seem huge if it’s a dark or bulky piece or if it’s too close to other furniture.
Marble is a big investment, but without exception marble dining tables are nearly always showstoppers. Tables crafted from quality imported marble are extremely beautiful.
It is likely that you will take the new items with you and so it wont be a wasted spend and could end up selling your home if it helps to make the room appeal to buyers. If you dont take them with you and the buyers like the space, you could offer to sell them - this is particularly handy for first-time buyers.
If you’re tight on space, consider options like leaves that allow the table to extend. These let you customize the table for different entertainment needs and party sizes.