Before this thread gets whisked off to the Online Bidding forum.....
Yes, you will always get a good deal on LAX airport hotels on Priceline, you must select the Name Your Own Price feature. I have stayed in the LAX zone hundreds of times on PL bids, and every property I received at or above 2.5* was convenient to the airport. Do not bid below the 2.5* quality level, or you will get Zonked.
A bid of $70 for a 4* will most assuredly get you into the Sheraton or Westin, the only 4* hotels in the LAX zone. If not, add a nearby zone that doesn't have a 4* in it, for example Culver City, and increase your bid by $5.
Ignore all "information" provided by PL, for example do not increase your bid by $17 if requested. $5 will suffice.
You will always want to bid on 2.5* instead of 3*, and the 2.5* properties in the zone include the Courtyard. Likely as not, however, you will get the dreaded PL 3* upgrade which means the Hilton or Holiday Inn, dreaded because 3* hotels charge for stuff 2.5* properties often give away for free such as parking, internet, and breakfast. The LAX Holiday Inn will give you a room that has been smoked in, you are strongly advised to reject it and demand another.
On weekends only, bid $50-55 for 2.5* in the Manhattan Beach zone and you'll likely get the Residence Inn MB featuring full kitchens and free breakfast.
Read and study betterbidding.com . Like any skill, your PL skills will improve with practice.