See you there!
TBH, I think even if you do end up spending several hundred euro per person, you're still getting quite a lot for that money.
Although the two weekend days are "free days" with only one paid meal, so people will need to budget food, transit, entertainment for those days.
And while there will be lots of food paid for, even on the full event days you will probably need to pay for some meals for yourself, as last year. Drinks were free much of the time last year too, but not all the time.