sounds completely unjustified. Really getting sick of this now. I did some searching and found this
"Coffee87 - Sewell Lexus has it for $777 for ClubLexus members. Part number is 72840 assuming we are talking about the same part." I'm not sure if its still available.
Also if you got the time
"bauer26 - Fold the seat that has the cup holder up. From here you can see a plastic end cap that covers the hinge of the arm rest. To remove the end cap you need to look along the edge where the back of the seat panel meets the side of the seat where you will see a zipper that is tucked in. Untuck the zipper fabric giving you access to a zipper that is on the inside edge. Unzip the panels half way down. This gives you access to a phillips head screw that holds the end cap over the hinge. Unscrew that and slide the end cap towards the rear of the truck, the cap has a lip that rides along a rail causing you to need to slide towards the rear in order to prevent damaging the lip. Once you have the end cap off you have access to a #3/4 phillips head screw that holds the hinge mechanism together remove that and you should be able to remove the whole flip down armrest/cup holder assembly.
From there, Im not sure what is causing the cup holder to not open out. If there is something that is broken loose giving it a good shake may free it enough for you to get the cup holders out. At the least having the arm rest removed should provide you better leverage / more options to get the holders out.
To remove the actual cup holder assembly from the armrest requires the cup holders popped out and there are two to three screws at the rear of the cup holders on the underside. So until you get the holders popped out I don't believe there is a way to access them without damaging the rest of the armrest."
My .02 is to scour ebay for oem replacement. Worst case just grab some aftermarket ones if that's the price they're asking. Good luck