30-30 because I don't need high power
Prefer the ease of lever
no scope
for target shooting, mancave wall, and in emergency if burgled
I always like wood over plastic -- well except in catheters
Wood catheters... would be a painful choice.
With your old eyes ,

they make lever action shotguns.
If you only own one gun ,make it a shotgun.
A 30/30 is under rated as they will reach out hundreds of yards.
Hand loaded(non-applicable to lever actions unless lever revolution with soft synthetic tips type bullets are used) with spire points ;more accuracy at longer ranges than obtained with traditional safe for use in lever gun round nosed bullets can be wrung out.
A lever is fun but has disadvantages ,(all actions will depending on personal use and preferences) such as when they jam they really jam , too , shooting prone is complicated by trying to work the action while maintaining any semblance of aiming.
Man cave wall = vulnerability of a burglar having access to it before you, as well as probably wanting a lock on it if kids or guests have access to it too.
Calling the police ,fumbling for a key ,rounding up ammo , getting to your gun , all while being burgled.....