KMC make chains at different price levels. I've owned some lower priced versions that wore out quickly. Trying to get maximum mileage from a chain is a good way to shorten the life of cassettes and chain rings. To maximize life, alternate the use of several chains. You'll never get new-chain skip. I've had 12 speed drivetrains for over 3 years. I've got 10 chains in rotation for three bikes. I ride about 9000km per year, so it will take a long time before they are all worn. I alternate chains about every 1000km. The SRAM force axs chain is the most quiet I've found and wears well.