Costco.com is selling these two packs for under $200...well, by three cents. I think these are the older models...new ones are selling for $330/pair at Costco.
I've attached links for both colors...white or black...same price.
I know sonos has been having issues with software obsolescence...I'm not going to get into it as I'm pretty ignorant about the whole issue. I'm sure there are plenty of resources online.