Keeping up with the Julia Peyton-Joneses

News on the street (park) is that JPJ, HUO and other three-letter-monikered Serpentine folk have acquired another building to expand the Serpentine empire.
Do we need any more Serpentine? Do we WANT any more Serpentine? Perhaps it a case of organisation-expansion-envy (see Whitechapel/SLG)?

HERE