Nice. Engelhard bars are great. All good points. I collected coins as a hobby for years. After collecting silver coins (U.S.), then moving on to Amercan Silver Eagles, I found that Engelhard bars are extremely popular and preferred. I find an occasional 1 oz. or 5 oz bar. I don't pass them up. These 10 oz. bars have been harder to find for me. Usually, I find them at local coin shop without any higher premium than others, so it is hard to leave them behind.
I can see why they're hard to pass up. :)