Of course, Metawin is really special, but to be fair, other casinos have also run similar promotions in the past. Btw I haven't noticed 100% RTP recently on other casinos but I feel like Metawin is making this promotion trendy again because today, wagering contests are very popular and 100% RTP games give us the possibility to wager a lot, collect points and increase our chance of winning. Btw I'm happy that this event is not only for NFT holders, 100% RTP dice is available for every Metawin owner.
A casino that manages to operate in many years and does it successfully is good, above average, and Metawin has run their marketing in the forum and on other social media platforms for about one and a half years, it's evidence of their sustainable business development. It shows how they are a special casino in effective business operation from great dedication to build up their platform, serve customers and gain good reputation over time.
This specific promotion is only one of many pieces of work that have all contributed to success of Metawin so far. They have made their name as one of special casinos in Bitcointalk forum.