Like your mother always said,
"Don't play with matches and never, ever take a counter offer!"

Why? (The match part we get)

• Statistics show that 80% of the people who accept a counter offer leave within one year
• Your loyalty will always be in question
• Promotions go to people who are loyal
• Accepting a counter-offer means knowing you can be bought
• Getting a counter-offer means your company has to be threatened with a resignation before rewarding you
• It is a lot cheaper to "throw you a bone" than to replace you
• In lean times cutbacks start at your door
• The same reasons you wanted to change jobs initially are still there and will continue to affect your quality of life
• The company whose job offer got you your "raise" will not respect you