There is a wide utility of the altcoins. For example you can buy parts for your card with autounit, or you can enjoy the benefits of green energy with robotina. But not only that, you can buy mining services for cryptocurrency. So it is a question of what do you need and where you can find it on the blockchain.
I usually use my bitcoin for my daily expenditures. I mostly earn coins from campaigns and cash them out because I have no other job and crypto campaigns are the only source for my income. I am happy because it has given me a job at my home. I am earning quite reasonable money from bounty campaigns. I hope these campaigns will continue forever.