What's the Purpose?

"To everything there is a season, and a time to every purpose under heaven."
Does that sound like The Byrds? How about Solomon in Ecc 3:1.
What is the purpose of over-commercializing holidays-such as Christmas-then forbidding employees to use the word for the holiday? "Its the holidays, not Christmas season" I overheard at a BIG retail store. Seems to me, if it weren't for the Christmas season many of these retailers would be out of business. Yet, scolding for speaking the name of the most profitable season of any given year.
Christ died for a purpose--to bring everlasting life to any who believe.
What's the purpose in celebrating him?