For more info regarding Gold status benefits, please visit hilton's website or Google hilton gold benefits.
Perks:
1) Space-available upgrade to a preferred room (I stayed in Hilton Boston hotel once. They give me a suit which they were selling at $550 plus tax. I only paid for $140 for the basic king room. That valued over $400! And this is just for one stay! Gold members get upgraded all the time!)
2) A complimentary continental breakfast for you and up to one additional guest registered to the same room EACH DAY of your stay (Two breakfasts value around $20, if you stay for two nights you can save $40!)
3) Executive Floor Lounge Access (available at select properties)
4) Complimentary in-room and lobby Standard Internet access