Does this mean that Core Bitcoins are and will always be the most valuable one? We have Bitcoin Cash, Bitcoin Gold and on November, Segwit2x, all forked from Core Bitcoin.
stop giving weird names to bitcoin!
it is not core bitcoin, it is not bitcoin core, or anything else it is simply
bitcoin it doesn't have any trailing names to it!
bitcoin has been forked at least 600 times and that many altcoins have been spawned from it. some of which did airdrops to bitcoin holders. it doesn't make bitcoin more or less valuable than it is. the value of bitcoin comes from its usage and adoption. mostly from being a currency.
It also makes me believe that the older your coins are in your storage, the more valuable they are because they are entitled for all the Bitcoin forks.
some of these forks last for a short time though!
for example BitCore (if i am not mistaken) airdrop will end by the end of this month and they distribute the remainder of the airdrop somehow among the existing users.