Yeah agree with
@DynamicEars that there's no such term "endgame" in this thread hahaha.
I'm also starting to see the light to move up the ladder and buy one set of higher quality rather than getting multiple $50ish USD sidegrades. I've said this before, but I've mostly stopped buying multi BAs/hybrids after I bought my Audiosense T800 6 months ago. I can see there's merit in tasting different sound signatures for cheap now that the CHIFI gods have given us great price for performance ratio these 2 years so it's very easy to impulse buy multiple $30 - 50 USD CHIFI that have good reviews and are cheap. But the costs does add up after a while to that of a midfi set if you bought 3 or 4 of them cheaper ones.
But definitely, there's huge diminishing returns beyond the very good $50 USD CHIFI segment. If I could subjectively rate the jump from budget segment (eg KZ ZS10 Pro) to midfi segment (Audiosense T800/Westone W30) to TOTL segment (QDC Anole VX [auditioned but couldn't afford the purchase]), each segment jump is about 10 - 30% difference in technicalities, though the TOTL segment has more refined tuning with lesser harsh peaks/troughs. The pricing is about 10 times difference each segment you go up (budget -> midfi -> TOTL), but the difference in sound quality is definitely not 10 times the money we paid for. But unfortunately, once you have heard something, there's no way to unhear it and drop down a segment, at least for me haha.
I have some audiophile friends who will stop at no costs to pursue the last 10% in sound quality for thousands of dollars more, though how much we wanna spend is subjective. So the best advise is to just set a budget for yourself into how far you wanna go down this rabbithole and keep to it. There's always gonna be a next better set or hypetrain coming out and the FOMO is strong, but too bad our wallet funds are not unlimited.
I've had the LZ A6 on my wishlist for a long time, the lowest I've seen it go before AE coupons is ~ $235 - 238 USD, not low enough for me to push the trigger. I suspect it will drop in price as the months go by, as per other audio gear, and as newer models with better tech come out.
Their previous well regarded model, the Semkarch SKC CNT1, was previously $95ish USD, but a year or so later, once they were clearing stock, they sold it as low as ~$30 USD. So be patient and I'm certain prices will fall eventually, maybe $150 is possible even for the A6.