I've used a SRAM S-7 hub and i just picked up a nexus 8-speed IGH for a new build I'm working on. IGH's work fine and for a long time all you could ride were single speeds or upgrade to a 3 speed. Many of the major manufacterers are still producing bikes with 3,5,7,8,9,11,and 14 speed IGH's becasue they seem to be regaining popularity for many of the reasons you mentioned. (Simplicity, able to shift at stops, less external parts to get damaged, less adjustment and maintenance, etc.)

Build this bike. Post pics.