We bid on a YC Deluxe Suite last week for our November Meriviglia sailing. Min bid was $1,175 pp and we bid $1,225 pp for a total of $2,450 to increase our chances. Our original booking (booked in April) was Balcony Fantastica on deck 12. YC would have cost an additional $3,740, so if we win our bid, we'll have saved $1,290 by bidding instead of choosing YC at time of booking
Interestingly, the prices for booking both the cabin we currently have and for booking YC are identical now to what they were 4 months ago in April.