In fairness, Rick does say this on his web page that contains the link to rail Europe:
"On National-Railway Websites
Many European national rail companies allow customers to buy tickets online at the going European price (usually for faster classes of trains for which reservations are required, or at least recommended). Advance tickets can be an especially smart buy for popular high-speed trains (such as France’s TGV trains and Italy’s Le Frecce trains), which frequently sell out.
If you’re looking for the cheapest possible ticket between A and B — especially if A and B are in the same country — this is the way to go."
The ticket prices are 102 euro, not US$. That is equivalent to about $115 when the exchange and 3% credit card fees are included.
Caveat Emptor. The constant discussion on this forum is how to purchase railway tickets at the least cost. The almost universal consensus is: Never use Rail Europe.
Unfortunately Rick is in a long term marketing agreement with this outfit. Up until 10 or 15 years ago, this was OK, but now the word is out that there are much less expensive ways to go. Rail Europe is owned largely by SNCF, the French national railway operator. On their own website, if you tell the truth and admit you are from the USA, their website will automatically shunt you to Rail Europe. But if you lie and tell them you live in France, or Croatia, or Antarctica, they will let you continue on their site and buy tickets at the best prices. It is an odd, and very transparent rip-off.
Just as milk at the 7-11 costs a whole more than at a mega-supermarket, convenience comes at a price.
Rail Europe is very satisfied with your money, and I don't see anything on their site about "Lowest Prices Guaranteed!" Yeh, Rick makes a small pittance on the transaction, but don't say he didn't warn you.