The U.S. Gold Bureau has the buy back guarantee!!! : ) That is the main reason for me to buy certified coins from them.
The US Gold Bureau requires each of their clients/buyers to hold onto their certified coin for at least 5 years before trading them back in. Thus, if you need quick liquidation, then do not buy certified coins; just buy regular silver Canadian maple leaf coins from the US Gold Bureau.
Around April 19, 2017, I traded/mailed in my silver bullion coins (to the US Gold Bureau) to buy 20 of those 2017 Silver Eagle S Proof 70 Congratulation Set—with the former Director of the U.S. Mint, Ed Moy, hand-signed signature (which only adds more value to each coin)—at the price of $259 each.
Now, it is $400 for each of the 2017 Silver Eagle S Proof 70 Congratulation Set (with Ed Moy’s hand-signed signature).
The 2017 Silver Eagle S Proof 70 Congratulation Set (with Ed Moy’s hand-signed signature) is the Special Issue Silver Eagle set/coin with an extremely low proof 70 population of 5,026.
In the US Gold Bureau website, somewhere horizontally at the top, look for the Investment Tools tab then click onto the option with the Silver American Eagle Proof 70—for its number of mintage, population and rank.
First, at the beginning of April 2017, it was $125 for each of the 2017 Silver Eagle S Proof 70 Congratulation Set (with Ed Moy’s hand-signed signature).
Now, it is $400 for each of the 2017 Silver Eagle S Proof 70 Congratulation Set (with Ed Moy’s hand-signed signature).
While I am at the age 31, I buy those certified coins to prepare for my retirement (the time when I no longer have the health to work).
Source: https://invest.usgoldbureau.com/silver-american-eagle-proof-70-coins
2017 Silver Eagle S Proof 70
An extremely low population of 2017 Silver American Eagles will be minted in San Francisco as opposed to West Point. These rare coins will have a "S" mint mark that will make them unique and highly sought-after by investors and collectors. The 2017-S Silver American Eagle is part of a limited edition "Celebration Set" from the U.S. Mint. With the low population of these coins, demand will definitely outstrip supply, making the 2017-S Silver American Eagle likely to appreciate in value at a higher rate than more common coins.
Ed Moy Signature Series Silver American Eagle Proof 70 Coins
The U.S. Gold Bureau has partnered with former Director of the U.S. Mint, Ed Moy, to offer hand-signed certification labels on Silver American Eagle Proof 70 coins. The Ed Moy Signature Series of Silver American Eagle Proof 70 coins will be highly sought after by investors and collectors and is exclusive to the U.S. Gold Bureau, meaning population for Proof 70 coins and Date Runs will be extremely low, adding to their investment potential.