I agree, I love the new system even the destroying of old cards to get a new one which a lot of people dislike. However, the rush time cost is insane. A raider's max cost is 180k so why are the cards 200k+? A card shouldn't cost more than a raider. The wait period is extremely long to. As someone who played Warframe the wait period was annoying but to my knowledge nothing was longer than 2 to 3 days and it felt like that was understandable. I still wanted to rush it but I knew in the long run I didn't have to wait that long.
That being said it is a new system and I expect MSE will make changes later, I just hope they don't make it too easy because then new players will never experiment with cards and just go for what the community says is the best cards to use.