Having used Shimano, KMC, SRAM, Campagnolo, and Wipperman chains....buy what is on sale. The only difference is the packing medium (seeming fish oil, or grease, or lube, or grease respectively). Lifespan is the same. Can get SRAM PC1130 chains with a masterlink included for $20 off Amazon, Prime. PC1110 is even cheaper, but not usually Prime.