I think the same.
Altcoin to me is just a way to multiply my bitcoins, sometimes all my bitcoins are invested in a few altcoins but in the end i sell all of them for more bitcoins.
This totally true, most of the altcoin is helping us to have a bitcoin into our wallet. I think that's major thing purpose of altcoin, for us to buy bitcoin once the value are much reasonable to sell it then it will become bitcion already. also altcoin helped bitcoin to promote it well, so meaning altcoin is not competing bitcoin it is only in the mind of others.