About 4 years ago while on a tour one of our stops in the Guelph, ON area was a similar collection. I don't know the numbers but it took up the entire basement, floor to ceiling, many rows.
Most new stuff will probably be worth the same $$$ in 50 years. Everyone is keeping them MIP/MIB and never played with.
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.