M.C.
Like the others have said it depends on the package. If its a voluntary-buyout, they may fluff it a bit to get takers. If you don't take it, what does that mean for your current work? Will you take a paycut? Will you keep your pay, but get more work?
In 2009 both my husband and I were laid off at the same time at the start of the summer. I was extremely tempted to sell the house, pack up and move to the beach! Why not? There wasn't a job keeping us here. We decided to stay because of local family that would miss us. Husband found a job after 4m at lower pay, but better commute. For me, I was promised a 1 year package, 6m health so I wasn't stressing too much.Within 2 weeks 1 guy from my group found a job. After 10m someone hired me back at my old company. Another guy in my group tried for over a year before getting hired, and another lady still hasn't found a job 18m later.
Another group at my company was doing RIFs. There was one guy getting laid off that was offered a package. There was a second lady that was about a year from retirement. She was NOT part of the layoff, but would pick up the work of the guy that was being laid off. She didn't really want that work since she already considered herself overworked. She gave it some thought and decided SHE wanted to take the buyout. She went to management, said let me retire instead of firing the guy. They said OK and the guy kept his job. She is now happy as a lark! She is getting retirement pay, plus has a new part-time job doing something that interests her.
So again, it just depends on what is being offered, and what your life situation is.
Good luck,
M.