Looks good, I already see things on that list I wish I could start saving up for to purchase. Though that last purchase may need a cost upgrade since it gives a bunch of the previous things at the same price, but that's irrelevant. +1, like, top suggestion, whatever'll get it implemented sooner.
My opinion really doesn't have anything to do with the topic. But since Junny excluded me from the invitation to comment I decided to comment after all, even if it by some might be considered "off-topic" and "bullshit". So here it is, my feelings about it:
Definitely think this is a great idea, although I would suggest maybe another choice to swap tokens for ecs, especially as a massive reward, since ecs are the most wanted idea.