Would you buy a 2009-W Buff Gold pre-graded PR70DCAMFS?? Did I mention no returns?? Some buyer just

Seller's been doing this practice for 10 years and does not play games!!! 
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Mandatory AGB Image copy!!
PRESALE - - NO RESERVE
You are purchasing one 2009-W GOLD PROOF $50 Buffalo - one ounce .9999 gold - Certified / slabbed PCGS PR70 DEEP CAMEO FIRST SRIKE! These coins will be a Perfect Grade of PR70 and have the special FIRST STRIKE Designation.
PRESALE - in accordance with ebay policy on presales - i guarantee to ship these coins to the winner within 30 days of the auction end (should be MUCH sooner). . If there are any delays causing me to be unable to ship within 30 days - such as delayed shipping from the US Mint , reduced allocations from the US Mint , delayed grading or shipping by PCGS . . . etc - you will have the option of a 100% Refund . . I have been preselling Certified US Mint coins for almost 10 years and do not play games - you will get what you pay for and i will ship by Insured USPS within 48 hours of receiving these coins from PCGS.
PLEASE NOTE - this is a presale - you are locked in and committed to buy this coin at the closing auction price. In the next couple weeks - the price of these may fluctuate - either up or down - these fluctuations do not matter - you are locked in - we will not renege if the price increases and you can not back out if the prices decrease (unless we are unable to ship within 30 days for some unforeseen reason)
No Returns on bullion items --
eBay Pre-Sale Link

Mandatory AGB Image copy!!
PRESALE - - NO RESERVE
You are purchasing one 2009-W GOLD PROOF $50 Buffalo - one ounce .9999 gold - Certified / slabbed PCGS PR70 DEEP CAMEO FIRST SRIKE! These coins will be a Perfect Grade of PR70 and have the special FIRST STRIKE Designation.
PRESALE - in accordance with ebay policy on presales - i guarantee to ship these coins to the winner within 30 days of the auction end (should be MUCH sooner). . If there are any delays causing me to be unable to ship within 30 days - such as delayed shipping from the US Mint , reduced allocations from the US Mint , delayed grading or shipping by PCGS . . . etc - you will have the option of a 100% Refund . . I have been preselling Certified US Mint coins for almost 10 years and do not play games - you will get what you pay for and i will ship by Insured USPS within 48 hours of receiving these coins from PCGS.
PLEASE NOTE - this is a presale - you are locked in and committed to buy this coin at the closing auction price. In the next couple weeks - the price of these may fluctuate - either up or down - these fluctuations do not matter - you are locked in - we will not renege if the price increases and you can not back out if the prices decrease (unless we are unable to ship within 30 days for some unforeseen reason)
No Returns on bullion items --
eBay Pre-Sale Link
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Comments
What he is trying to avoid is the return if the price on ebay goes to $1600 before delivery. The buyer backs out and buys at a cheaper price. OTOH, if the price jumps to $2200, the buyer wants to hold the dealer to the deal.
As a seller, you can't avoid presales on a coin like this or when you get your coins you find many of your customers have impatiently locked into a presale with someone else. I did not put any no-return language in my presales. What I did successfully is put this wording in my presales:
"Buying a presale is a risk decision for you the buyer. Prices can go up and prices can go down. I want to give those who want to lock in a price early a chance to do so and I want to give you the lowest offered price. Feel free to contact me if you want to further discuss the pros and cons of presales. Of course you can wait until I get the coins back and buy at the prices then. They may be lower, or they may be higher. I don't want anyone to think they need to buy now or the coins may not be available later."
I haven't had anyone try to back out of a presale even though prices did go down a little after the early ones. Treat people as adults and they act like it.
--Jerry
Option of refund OR WHAT???? I am sure the seller is reputable, but I am not clear on this "option".
Sellers like notwilight (and myself) have coins in hand and ready to ship at essentially same price level (no pre-sale risk of any kind).
Wondercoin
``https://ebay.us/m/KxolR5