Which one do you think could be the strongest selling feature of these?

Please explain the why.
nostr:nevent1qqs2jar2z8xdhjjsxen8wfyh34f0n440tmecj8f65m8fumxtjh5gt9qpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgq3qry5wud2c748rzexcr5nvxhsj8sj5htsjsd2dwcta0lvx94cdng4sxpqqqqqqz5dgqt6
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