Last minute can be a bit pricy. But Boston to NYC is 40-78 dollars. Bus is 40, and takes 2x longer, and uncomfortable. I can get 4 hours of work done. It's not Europe, but it's really a way nicer experience than I expected.
I've taken the Surfliner route (SB->LA) frequently while in college. Moving to NYC and taking the Acela (NYC to Boston) over 20 times, I have to say the east coast experience is amazing. The route is super popular with business travelers commuting to NYC or other major cities along the route. You show up, grab a seat, pop your laptop open, get some work done... wow you're at your destination. Hungry? Walk to the snack cart and grab a coffee or a beer, at a reasonable price.
While I was there, I believe there was a policy that you couldn't just access public accounts, and it would be a massive red flag if you did. Point being, you actually have to know someone who's either on the right team, or is willing to connect you with someone capable of handling this. Not as trivial as having a random acquaintance at meta.