I see all these lovely signs advertising cheap tickets to Paris (like CHF 100 one way), how do I actually book those? I'm having guests in October who want to go to Paris, but the 350 which seems standard for train is a decent chunck more than flying would be. I tried the TGV link above but it forced me over to the SBB site which refuses to tell me prices, does anybody have experience finding said cheap train tickets? tia

(as an aside, what happened to the quick reply buttons? They seem locked for me and pushed me into the full reply dialogue box, not that it really matters, just odd).