This is exactly right, at least for me anyways. 2 years of 2-3 ride per week.
My very first ride was only 7 miles. You will begin to forget about the number of miles, and get more interested in seeing more places and traveling further.
For me it switched to intensity. I used to do longer rides but now I rarely do anything over like 60 miles maybe, it's just tiring being out that long and not fun for me. I can go out for a 45min-hr ride or go to the track and destroy myself in three sub 20 minute races. I don't want to spend like 8 hours looking at the scenery stewing in my sweat.
yes to both of the above, all the moreso for old, weak & slow me
from Day 1, for both Tuono Joice & me, the fun's come from extending our comfortable mileage while increasing pace a li'l - after a year of riding, we've begun twice-weekly, 40-min spin classes to introduce some intensity & to get comfortable with having stressed quads
'tho we have zero interest in centuries, grand fondos with reasonable routes + food & wine are
very appealing distractions from the local rides we routinely enjoy together