As of right now we have 2 subscriptions you can buy in the game: VIP and bucks fidelity.
Now the first is fantastic and by far the best spend in the game, but bucks fidelity is lackluster to say the least.
Let's so some maths; in Europe the best deal for fidelity is 60 euro for 3 months of 250 bucks per say and 800 bucks at the purchase. This equates to 20 euros per month (almost double VIP) and a total of 23550 bucks for 60 euros.
Now going to the bucks shop you can get 22000 bucks for 63 euros instantly.
This just makes the fidelity membership mildly ok if not straight up bad, since you need to login everyday to claim the bucks. And tbh, 23.55k bucks for 60 euros is really not much. That's a whole triple AAA game for essentially 3 packs of 640 s-dna, so almost and indoraptor lvl 10.
And I know that the argument can be said that this is intended for whales or that the fidelity special offers are good but first of all, the fidelity special offers are just bad and secondly, I have literally NEVER heard of anyone purchase fidelity membership.
I feel like a lot more people would purchase fidelity membership if it was treated as a bonus to VIP. So something like 5 extra euros per month and you get 250 bucks per day. That gives about 9x value, which is what is normal for subscriptions or if not lower the amount if bucks, make it 5 euros but also make the trade harbour have special fidelity offers, giving players more opportunities to exchange stuff for bucks, not nerfing regular players bucks from the trade harbour, but giving more chances to willing payers.