you don't get anything extra buying a package over booking the hotel separately and then sorting out your own park tickets, so if its cheaper to do it separately, do that

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Are any of your party children, if so how old are they? Just thinking about possibly cheaper park ticket options for you (and to be honest I think paying 229 euros for one night in the Cheyenne is very expensive, but if you're certain you want onsite, I guess you'd have to pay that price

).
If you stay at the Santa Fe, Cheyenne, Sequoia Lodge and Newport Bay Club hotels, you can ask at your hotel reception to have breakfast in the park instead of at your hotel. However, you can't book this ahead of check-in, and its not available every day. So if you are thinking of this, I'd treat is as a possible extra, not a definite. You get timeslots for this breakfast in the park, and yes, if you take a 9.15 or 9.30am timeslot, you can do the quietest hour of EMH (from 8am to 9am) then have breakfast without leaving the park.