Agreed that it is annoying to watch,
My logic is as follows, the coins that I now hold I believe have a use case in the wider world, and once their roadmaps pick up steam, should have real value,
Currently the market is still almost all speculation with very few mainstream products, once this starts to change, the market should pick up.
For coins with no real use case, get rid of them, they might have their pump and dumps but will never truly have long term value.