When you have a team of 80 and you book a hotel for a half a week then 50€ is mostly the maximum limit for twin room. So, max 40 rooms for the team, it is approximately 2000 per night. and 10 000-12 000 per rally. Whole season cost approximately 150 000 eur for accomodation. Take one day from eaxh rally, it is approximately 25 000 saved per season...
The point is that if you save something from everywhere, you get a bigger number by the end of year.