You're going to need more flexibility as $180 all-in just insn't realistic at current prices... so something is going to have to 'give' in regards to star rating, location, or budget.
In about 5 minutes i can teach you to be an expert searcher and you'll see the battle (ie- prices) that you're up against...
Using our BiddingHelper.com tool enter your search parameters (being sure to include 2adults/1child) and in the HOTWIRE EASY VIEW tab:
1) on the left side scroll to the star ratings and select only 4* and higher (if you're on a desktop just hover over the '4 stars' and you'll see a link 'and higher' which will select everything 4* and higher and UNselect anything less than 4 stars)
2) scroll to the top of the search results where it says: Sort by Zone | Star rating | Price
--> click PRICE which will now sort all of the 4* and higher rated hotels by price
3) now start at the top of the listings and scroll until you start to see zones that are within Manhattan
... and give yourself a pat on the back, you're now an expert searcher
The least expensive hotel within Manhattan would be this one:
4* HOTWIRE Madison Square Garden for $191.00
While i do have a guess for the hotel above, that's not the point at the moment, the point is that by the time you add in taxes, fees, and the resort fee that this hotel charges (which is doing it's job of making the hotel look artificially cheaper than it really is) you're looking at nearly $290/nite.
You can repeat the steps above to look at different date combinations and you may find a slight improvement, but you're not going to find anything that brings you down to the $180 all-in level... which brings us back to something is going to have to 'give'; so in regards to budget, location, star rating, quality... which are you more firm on and which do you have more flexibility?
Of course if you find some date/price combination that we missed (or didn't appear earlier) we'd be happy to have a look and research/identify the hotel(s), but at the moment it looks like you're going to need to compromise in one or more aspects of your original criteria.
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.
Let us know your thoughts and how you'd like to proceed and we'll take it from there.