I have an American Express Platinum and it has a 395 dollar fee. If the card did not pay for itself I would not pay the fee.
Lounge Access. Lounge Access on all Domestic Skyteam partners. This is huge if you travel a lot and your company does not pay for lounge access and/or it is personal travel. 
Card Replacement. Not always a big deal, but I lost my card in Orlando (not sure how). I needed it for other charges and was told I had two options. Go to the Amex office and get a card made in 30 minutes to an hour, or have one overnighted. I had one overnighted for no additional cost.
Complimentary Starwood Gold Membership. Quite handy if you stay at Starwood properties. It allows you a lot of extras such as room upgrades, late-checkout (sometimes), etc. 
Fine Hotels and Resorts. You get a discounted rate on many luxury hotels and resorts. I used this quite a bit the past year, and typically saved about 10-15% compared to the lowest Internet Rate.
BVG - Best Value Guarantee - Essentially they will refund the price difference of an object you purchased using the card if it becomes cheaper within X number of days. 
Theft and Damage insurance. Anything you purchase with the card is insured (up to an amount) against accidental damage or theft. Used this on a digital camera. Works easily and flawlessly. 
Concierges. They use Circles Concierges for the most part. They have arranged tickets for me for several events, flower deliveries, package deliveries, hotel research and/or trip research, etc.
If you wouldn't use the benefits then it isn't worth it. If you do it is worth it.