In terms of currency price performance, arb is worse than op. The biggest problem with arb is that a large number of coins will be unlocked early next year, which is double the current circulation. That is, if the circulation market value remains unchanged, the price will have to be cut in half to match. If the circulating market value doubles, then the currency price will remain unchanged, so why buy it? By then the op price has doubled. I personally do not currently hold these two coins.