While I also hate soldering DIN plugs and sockets with a passion, IME commercially made MIDI leads are mostly terrible.
The cheaper ones with their horrible moulded plugs, undersized pins and weedy cable are just about OK for permanent studio installations where the connections are made once and then never touched for several years, but on no account would I ever consider using them at a gig. Anything I would consider road worthy is eye-wateringly expensive compared with the cost of making my own, so whenever I need a MIDI cable out come the magnifying glass and soldering clamps.