Welcome to BetterBidding!
Few question/comments to clarify some of the above:
What is your expected/maximum budget? (in USD)
Since Great Wolf Lodge does not offer Free Breakfast, and the PriceBreaker hotel shows a Free Breakfast amenity, the PriceBreaker hotel is likely some other 3.5 star hotel in the zone and not the Great Wolf Lodge that you are looking for.
Since you're trying to keep costs as low as possible, have you considered Sept 1-3, as that shows to be a little cheaper vs. including the Saturday nite. Also, i don't know the specific occupancy/children rules at GWL, or how they control access to the water park area, but this is a situation where you need to be careful booking an 'opaque' hotel with PRICELINE as they only guarantee double occupancy. While the risk of booking double occupancy at a 'standard' hotel and showing up at a hotel with a young child is somewhat low, it increases substantially at a property such as this (which offers a water park). I have not stayed at any Great Wolf Lodge properties but i have been to Kalahari (similar concept in the Poconos) and, iirc, access to the water park was restricted by wrist bands. If you book a room for double occupancy what if that only entitles you to two wrist bands to access the water park and they want an additional fee for the 3rd wrist band for your child? In this situation i think HOTWIRE would be a better option since their service allows you to search for up to quad occupancy, so there shouldn't be any additional occupancy charges if you include 2adults/1child in your search. This may ultimately be a moot point since the PriceBreaker hotel is not likely the hotel you're looking for.
I am seeing what looks to be GWL on HOTWIRE:
Sept 1-3 for $325 (USD before taxes/fees... and before our Hotwire Coupon)
All terms of all of our Priceline Coupons are set by priceline. If you still want to use Priceline (even with the occupancy caveats above) you may be able to if you change your location to US and currency to USD. Do you encounter the same when trying our Hotwire Coupon? (i'm not sure if their terms are also confined to US or not)
There is currently a known PriceBreaker issue where trying to purchase the hotel gives a 'You Just Missed It' message, and this happens both thru our site and on the PRICELINE site, but I haven't see the Captach issue in a very long time, it might help if, as per above, you change your location to US and currency to USD.
OK, a fair amount for you to digest... let us know your thoughts / questions and how you'd like to proceed and we'll take it from there.
Please remember to return to BetterBidding and use the PRICELINE and HOTWIRE links on the board to begin your travel purchases... or thru our sister site MAPSandHOTELS.com for your regular rate purchases.