Whether you just a habitual plinker, or 'graduating' to any shooting discipline, the nice thing I like about 22 LR, is one can just about aquire any downsized similar firearm. This downsized rimfire firearm, can be as close as possible to it's older centrefire brother.
This could be merely the same common sights (tang peep/scope) or even share the action style, grip and barrel length too.
Hence you are getting yourself schooled in all marksmanship principals, in a smaller/ cheaper/shooting clone, well before the $$$ layout for the "high powered" firearm you want to move up to.
My two bits....
PS: Maybe one day in the future a spouse/son/daughter/nephew/neice, may just one day want to check out your shooting sport under your careful supervision.
This day, it would be very handy to have the light kicking, easy on the ears and budget, rimfire firearm!