Totally agree with everything you say.. I am turning 55 next year, and have been cycling (with a passion!) for almost five years now, and loving it even more each day. This year I completed the Seattle to Portland bike ride (204 miles) for the first time and looking forward to doing it again next year.
My husband was very involved in hiking and backpacking for years, and I never could quite get interested in that much, but we have both loved cycling and enjoy our cycle outings together (even though we ride at different paces). I only wish we had started even sooner than we did.