I've learned that travelling on the 1st class Eurail/Interrail ticket can end up cheaper than 2nd class, as some seat reservations will be free or cheaper in 1s

I've learned that travelling on the 1st class Eurail/Interrail ticket can end up cheaper than 2nd class, as some seat reservations will be free or cheaper in 1st class. Also, there are valuable 1st class perks such as free breakfasts, luggage storage etc. that can easily add up.