Get the best quality you can reasonably afford. Upgrade one at a time so it's not a financial burden. The same way you upgrade components. If you don't know where to start, then start with the type you need fewest of. Typically, that would be speaker cables. Then maybe either CAT or interconnects. Then power or cables from linear power supplies. On the other hand if you shop by "deals" then by all means chase sales. We all have a plan until a sale or a deal or... just be reasonable and enjoy the sound as well as the hobby.
