I was looking at the high-speed train from Frankfurt - Main Airport to Stuttgart, but I waited too long and the price has gone up to $99. Since we get into Frankfurt at 1pm, we have plenty of time (no plans that day). I have 2 questions:
1. Is there a cheaper option? I can't find any good bus or other train options that could save money.
2. If we decide to go for the high-speed train, is it even worth getting tickets in advance? I'd rather just wait until we're there in case a flight is delayed or something, but I'm worried the trains will fill up