You have any links for the $70 price for KZ ASX? As of the time of this post, it still seems to be about $100 for most shops on Aliexpress. It is more expensive on other non Aliexpress sites, eg Amazon too, and I have some friends that don't want to buy from Aliexpress for some reasons eg CS/returns doubt or they just don't deliver to some countries eg Aliexpress seems to have issues with delivering to India due to some conflicts. And I assume we are not talking about having price post coupons or flash sale or 11/11 sale prices.
I think u can get it slightly cheaper if u follow some Aliexpress stores for a fan discount, have seen it is at the OPA Audio store for $79 - 81 USD depending on mic vs non mic version. Haven't tried OPA store, so can't vouch for their reliability.
But haven't seen that at $70 before coupons/11/11 sale. Plus as discussed, maybe Aliexpress or even taobao (their local market seller) may be cheaper, but a lot of folks are still gonna be buying their CHIFI from other online platforms due to peace of mind/better CS, so I think on average most folks are still gonna be paying close to $100 for it. Though with the polarizing reviews coming out and the usual mark up of just released CHIFI, I would bet the ASX will drop in price over the next few weeks.
Some Aliexpress shops like to sneakily bundle cheaper gear in their posting for an IEM eg BLON BL-03 is frequently bundled with a cheaper cable to act as a clickbait, but the actual IEM itself is at the usual price. From brief screening, it will look like the BL-03 is $7.54, only when u go in then u realize that was a trick.