I have a few .25. But honestly I prefer shooting .22 these days.
The idea behind airguns for many is safe, accurate, short range shooting for fun, plinking, precision target, or pesting. The same reasons .22 rimfires Used to be preferred back in more rural areas and in more gun-oriented times. I own lots of different guns, both air and powder, and both are in .40-something down to .22, and for air, also in .177. I have room on the ranch to shoot them all, but generally prefer the .177 and .22 airguns.
The airguns meet most of my shooting needs perfectly. The firearms are noisy enough to preclude long shooting sessions, and the cost and effort to keep ammo supplies is getting daunting. The larger cal airguns need lots of air and ammo iand each shot is more costly than .22 and .177 sizes, yet the smaller sizes offer the same satisfaction for me overall.
Sure, a .25 bucks wind a bit better past 50+ yards, but the challenge is more satisfying to me to shoot well with the smaller pellets. And, even on 20+ acres, if a big heavy pellet or slug is aimed too high or too wide, it might do damage on a neighbor’s land.