Question: Is 40 Years Old Too Young For a Facelift?

My skin and facial muscles have started to sag. I don't really have wrinkles, but I do have sever Marionette lines. My cheeks are sunken and my eyes look hollow. I've heard and talked to doctors about several lasers and fillers, but realized that at the end the tab would cost as much as a facelift, considering that I'd have to go back every year for more fillers and more laser treatments. They say though, that I'm too young for a Facelift. Any advice?