Nah, you "own" it only as long as your rented keys are valid - what that means depend on implementation, and can mean anything from "you get to use the latest version for which you paid in perpetuity" (quite rare; notable example: Jetbrains), through "you can use only current software, as long as you pay, with forced upgrades, and only as long as we think it's not yet time to arbitrarily cut you off (and only as long as we're in business)" (the common way), to "software? what software. it's in the cloud, you have no say in anything, it's a service that works only as long as we care to provide it" (becoming the norm).
I suppose it's kind of like renting vs. buying a flat/house - the former is definitely much cheaper on a month-to-month basis, but you're subject to random landlord whims, and ultimately, you're just paying for a service - so when it ends, you're left with nothing.
Nah, you "own" it only as long as your rented keys are valid - what that means depend on implementation, and can mean anything from "you get to use the latest version for which you paid in perpetuity" (quite rare; notable example: Jetbrains), through "you can use only current software, as long as you pay, with forced upgrades, and only as long as we think it's not yet time to arbitrarily cut you off (and only as long as we're in business)" (the common way), to "software? what software. it's in the cloud, you have no say in anything, it's a service that works only as long as we care to provide it" (becoming the norm).
I suppose it's kind of like renting vs. buying a flat/house - the former is definitely much cheaper on a month-to-month basis, but you're subject to random landlord whims, and ultimately, you're just paying for a service - so when it ends, you're left with nothing.