49042-60020 is $349 did you have a special promo code or something?I agree with everything in @kgrove's post, but having recently shopped and replaced my globes, would add this:
Dealer list price, four globes $3,884.04 ToyotaPartsDeal.com, four globes $2,685.32 LexusPartsNow.com, four globes $2,872.12 Same parts, same back-end company as ToyotapartsDeal.com. Impex, Japan $596.32 NOT A TYPO. (And price dropped since I bought them a month ago.)
I paid $90 for shipping from Japan; ToyotaPartsDeal just told me it was about $19 to ship four globes.
It's a pretty easy job to swap them out, depending on rust. Empty the AHC fluid, unscrew the globes, screw the new ones in, refill the AHC fluid.
I'd echo this. I think a lot of LX owners bought a pre-paid maintenance plan/warranty as well. The LX I purchased was religiously taken to the dealer at every service interval, and all the scheduled items were performed.