have never seen this type of auction before but when i did a search on skyauction just now
it looks like you get one certificate for a 7 night stay in the resorts they might have available in their inventory at getawayweeks.com ( can not do searches now since they are doing maintenance on the search engine )
plus you get a 100$ certificate you can apply to any future offer or auction on skyauction that of course is good if you plan on using skyauction again
depending on the price you pay, it is a good unless there are other fees involved when you get to getaway weeks
the auction for this item that just finished at 10 went for 170$ which essentially means the 7 night resort vacation would cost 70$ since you get the 100$ to spend later
the only draw back that i can see now is the the inventory and areas you can go to might be limited since it seems to be off peak inventory they are trying to "move"
for ready set go auctions which would be similar to this type, you have to add 210$ to you bid price to get your actual cost