Can the original meme coin keep its top-10 crypto ranking for five more years? These three utility-focused cryptocurrencies suggest otherwise.

Dogecoin ( DOGE 0.73% ) was never really supposed to be a functional cryptocurrency. It's a clone of a clone of Bitcoin with a few funny tweaks to the code, intentionally making Dogecoin less secure and less valuable in the long run.

Yet, its adorable dog mascot and support from popular meme lords made Dogecoin one of the most valuable cryptos on the planet. With a $37.6 billion market cap as of Oct. 9, it would be a mid-range member of the S&P 500 (SNPINDEX: ^GSPC) if it were a stock, comparable to household names like Yum! Brands or Delta Air Lines .

But these things change over time. Five years ago, Dogecoin was only the 43

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