The first of these certainly does happen, in this case though I suspect it may be a bit of both. When it comes to negotiation this will likely go both ways, the prestige and association of a project like CERN is worth something to large tech companies, as is being involved with the people and projects.
It's unlikely that they will be able to quickly or even ever move everything to new platforms, but with time there's a good chance they can move much of it. It will come down to the economics and time pressures of buy-in vs build-in.
It's unlikely that they will be able to quickly or even ever move everything to new platforms, but with time there's a good chance they can move much of it. It will come down to the economics and time pressures of buy-in vs build-in.