Would you want to inherit this when you buy a house?
Old antennas and satellite dishes are common on houses, at least in this area.
I suggest that antennas be removed as they are simply lightning rods, and never grounded properly.
But satellite companies encourage subscribers to leave their dishes on the house when it is sold in the hopes that the new buyer will simply re-up with that company if/when they want a direct TV service.
But what about this? Would you want that on the roof?
And if the seller removes it, will the holes left behind be properly sealed?
It seems a problem to me, and I would not want that on my roof.
My recommendation: sometimes things should be done before a house goes on the market so it is not an issue when the house is looked at by potential buyers. And when a contract is accepted and the buyers make requests for repairs or what not, this sort of thing can become a point of contention. Why not anticipate and eliminate that potential before the sale?