No coin value can survive indefinitely based on speculators alone. Eventually the coin needs some practical purpose/use/adoption to have lasting value (in the sense of fiat value).
Compare XPM with Sexcoin - You can buy thousands products for Sexcoin, but nothing for XPM, and besides it sex industry move the internet.
But XPM is much more expensive and I believe it stays that high for some time.
Its hardly only because of speculators alone.
It is also because developers of XPM are well known and made stable coin with unique and excellent features. And community around coin is also stable and large.