Thanks for the help with my original questions about Switzerland. I have booked the TGV to Paris for $25 in late September. Which leads to my next question about OBB train service.
I did notice on the OBB website that certain trains between certain cities have what apears to be a discount rate. The OBB says there are only a limited number of tickets like this issued per train or something to that effect.
For example the 09:16 am train from Vienna to Salzburg has or did have a 19euro ticket versus the regular rate of 24 euro. We are are over 65 not sure if that means anything in Austria for train tickets. I also noticed a fare of 9euro on Railjet between Salzburg and Innsbruck.
I was going to purchase train tickets in Austria that have these offers as we already have hotels / apartment pre booked in Salzburg and Innsbruck.
Do you see any problems if I proceed?