Re: Lightswitches...
A presence switch that works with modern lights? I don't think you'll get it that cheap. The reason being presence switches work like dimmers, and many modern lights don't work well with dimmers (thus the label "non-dimmable"). You either need dimmable bulbs or presence switches designed for use with non-dimmable lights (those tend to be industrial-grade for use with fluorescent office lights--more expensive).
PS. As for being able to get up and flick a switch. there are handicapped people out there who CAN'T.