Monoprice.com has the Google Chromecast Audio device for regular price of $34.99 and the current promo code "LABORDAY
" will knock off 15%. It's not the best deal, but if you need one of these right now it's the best price right now I think.
FREE SHIPPING and no tax for most people. I think that if you add cables and other small items on the same order, they might all ship for free. I added a lightning cable and it shipped for FREE also.
I tried the promo code on the Chromecast Ultra but the code did not work on that one.
Promo code terms:*Valid on orders placed between 9/1/17 - 9/4/17. Excludes select products and gift cards. Limit one code per order and cannot be combined with other coupon codes, offers or preferred pricing. Limit 5 redemptions on orders up to $5000.