ill assume they cost more because theyre more rare. you can check all rewards yourself, risk free on the donator page, as long as you don’t confirm your payment while you’re in the browsing phase. you can search and browse options all you like before making your payment. you get to choose 2 reward items along with eggs (for captain). some items cost more, some are free. up to you what you want to buy. id recommend powered rails or tnt, never know when those will come in handy, lol.