Interesting question, jerry4039. I'm looking into this with our Rewards team right now and will get back to you shortly!
I have some information jerry4039 -
Members cannot buy up to another status, but if they fell short of the required nights from the previous year, they can buy their existing status using points. You may use this link as a reference: http://www.rewards-insiders.marriott.com/blogs/news-promotions/2014/01/31/regain-your-elite-status-for-2014-with-points-elite-buy-back-returns.
Hope this provides more clarity!