The ASDX015A24R is $102.21 at Newark.com but Newark shows this as a viable substitute:
Honeywell ASDXACX015PAAA5 $33.15
Looks like the same thing but with a snout. $31.93 at DigiKey.
The SPI version is slightly cheaper at DigiKey but they don't stock them so you have to buy 25.
Mouser has the SPI version (ASDXACX015PA2A5) for 33.15 in single quantities. Currently 16 in stock.