The thing about celeb depreciation, even with SP in play and on defaults, is that if you already have more than one celeb in a household or if any of your sims' friends and co-workers are, then celeb points and thus star levels can be maintained and increased at least somewhat just by having them talk to and interact with each other as they might do on a regular basis anyway. At least until Levels 4 or 5, by the time you get up there more effort might be required to maintain things.
If your sim is a loner (not the trait, I mean they really do keep to themselves) or if they are surrounded by others but never interact with them socially then this might become trickier.
@JoAnne65 - I couldn't find the quote either even though it seems so familiar to some of us. But in my imagination it would have been followed by something like "A legend in their own mind." Not that there's anything wrong with small towns and local celebrities of course, I'm referring to others who might be bordering on what some might call delusional depending on how one looks at things. ;)
