I think my favorite line from the episode is when the son is talking to his dad on the phone and his dad is like "We are the store." Doesn't really translate to text well but just the way he said it cracked me up.
Still, that line served a great purpose. Basically, that whole conversation could also be geared towards Harold (who is sitting there).
We have to realize,that Harold's also "down/depressed" because he lost his own store (The Library), but hearing that little bit, that the physical store doesn't really matter, the people that run it do.
Losing the Library doesn't matter, Team Machine does. Anyplace can be home.
Though, having an AI make up an entire thesis paper, add in code disguised as little typo's, have it given to an anal-retentive school administrator that actually would go to the trouble and proofread the whole thing, leading to the discovery of the ReeseCave, well....that's pretty special.
I do hope it's actually more than just "a new base." My first reaction was The Machine's servers. But, thinking on it, if Team Machine had access to the full data, ala Samaritan, the procedural pieces kind of go away a bit (From knowing who is a victim and who isn't).
We're gonna need to come up with various names for the new Base, though.