If Bitcoin's the man of the cryptoworld then all other currencies are his bitches. So why don't we call them bitchcoins instead of alt coins 
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?Lol they arent bitches because most of them has their own usage . maybe some of them can be call b*tch or sh*t .
The name alt isnt also boring because alt or alternative means a second choice aside from bitcoin . sometimes we need to use altcoins because alts can do what bitcoin cant posibly do .
Infact , altcoins are more useful than bitcoin because alts are cheap and can be bought anytime to be used on important occasions such as for paying or for profitable business.