The 4th and last coin in the RAM Earth and Beyond series (Milky Way, mintage 6000) was released on 4 Feb 2021, and sold out at the RAM eShop and all the major Australian retailers within about an hour. Ebay sellers are now asking $300 plus for the coin (RRP $135). Some overseas sellers have the coin listed, but at much more than the RRP. This could be mere hype, and the price will flatten out over time. The 2nd (Moon) and 3rd (Sun) coins in the series did not generate all that much demand, and were still selling for not much more than their release RRP in late 2020.