The cruising range suggested by the IWA is 100 miles. I work in Oldbury, West Midlands. To exceed the minimum range, I would need to go as far as Macclesfield in the North, Northhampton in the East, Sharpness in the South and Llangollen in the West. This effectively rules out any chance of commuting to a specific place of work, which, I suspect, is the whole point. I'd also wager that the majority of IWA members are retired.
When I'm away from my mooring for a length of time, my cruising range is around 50 miles, Worcester, Stratford, Tamworth, Stafford, Gnosall etc.
This keeps my commuting time to around 1 hour, which is reasonable for me.