At the end of the day I think everyone would accept that gyms are boring , but as surfer says if youre getting on a bit you have to work at staying toned. in my case there is a degree of vanity in wanting to look ok but mainly its keeping toned so I can enjoy riding .
When my kids were younger we used to go to the valley centretainment centre in bolton there was a hufge gym with exercize bikes next to the cinema. I amanged to persuade them that the hapless souls on the bikes were powering the scree and if the film juddered someone hasd stopped pedalling .