A sale on amazon? On Mars website? Or somewhere else?

This $550 deal for the 2x4 tent($120 coupon on Amazon) seems pretty good, and lowest price on amazon in history as far as I can tell.

https://www.amazon.com/gp/product/B08QMX1FTC/ref=ox_sc_act_title_1?smid=AKPEMWWZ95494&psc=1

Or are you saying they go on sale even more than that somewhere?