Firstly, you are lucky that a 6-footer is enough to get to your amp. I have 2 18 or 20 footers to get from the wireless to the pedalboard and back to the amp.
that said, one of the cables I have has to be 15 years old. I buy good ones and train them and don't wrap them up around my forearm like christmas lights. If you train cables one over, one under and get one of those velcro cable ties that stays on the end, cables will last a really long time. I don't buy those retarded boutique cables. I just try to get the nice-feeling cable, with good ends and maybe the shrinkwrap over the cable/end joint.
Every once in a while, when I am in samash or GC, they have 10 or 20 foot cables on sale. I bought 3 pairs of cables and 2 of the pairs seem to have ends that are bigger than certain jacks. Like they're on sale because they're made in china or indonesia and 1/4" = 7mm.