the first dev created both bitcoin plus and litecoin plus, and just bounced at some point.
But look at bitcoinplus now, 86$/XBC.

With the right advancements, xltc could follow, as it once did in the past.
And probably a nice thing for xltc that it will be introducing POW+block reward (xbc for example = 0 block reward) and will hopefully get a good amount of miners.

xltc will be going to a 4M supply cap, of which 225k coins are in existence already (bought from dev (years ago), mined from POS or traded on exchanges)