According to me everybody prefers old coins as compare to new coins because old coins have good future & more profitable. I will always keep old coins and i also like good project is always and everybody need patient to earn good profit.
Old coins have shown themselves in all their glory in difficult times and in the best, too, pleasantly surprised, of course, the trust in them will be many times more than new coins, from which it is not clear what to expect
Not so many old coins still exist at this moment and you can see that how the first altcoin that called filecoin can't evne compete with new coin and remember dogecoin has been doing the same thing like file coin. Peopel are trying to choose the coin which was giving them a lot of usefulness.