I personally will have a hard time saying good-bye to my credit card rewards. However I think the wooden card might have a viral aspect because people will want to comment on how unique the design is. This looks like another great product by Ecosia, and I hope that they continue to make competitive products that plant trees.
It’s also worth noting that while planting trees is very good for the environment, it is not a silver bullet against climate change.
Previous hacker news discussion about Ecosia. https://news.ycombinator.com/item?id=19324766