That's right! Only $5 plain-jane-chains for me, available anywhere. Maintenance? - a squirt of Triflow every month or so. Retighten rear wheel to adjust stretch induced slack every six months or so. Dirty hands maintenance except when changing out after 10,000 mile or so = none. Changes in rear or front sprocket on my current SACHS/SRAM Specto7 commuter after about 20,000 miles = NONE. Chain/sprocket problems=NONE.

YMMV, especially if you believe too much "stuff" on the Internet.