Could you elaborate on the payment options available for SuperRare? As a collector interested in the platform, I'm curious to know the specific payment methods they support. Do they only accept cryptocurrencies? If so, which ones are accepted? Or do they also provide traditional payment options like credit cards or bank transfers? Additionally, are there any limitations or fees associated with these payment methods? Clarifying these details would help me make an informed decision about using SuperRare for my transactions.