Whatever you buy, this is the best entry point you can imagine. Hold for a while and you will see green colour in your blockfolio.
The best entry point would be on the bottom, do you think we
reached bottom or prices can go down more? I think we never
know where is the bottom, it is something we find out later. You
do the trade and tomorrow you will see was that a bottom or not.
Nevertheless it is good to buy during dumps. Better then during
rises, price will recover eventually we just need to be patient and
wait for that recovery.
Portfolio is something that every person should have. I agree with
you Genrix about that, portfolio should be colorful with many different
coins/tokens, what ever he buy can bring profit, choose more then one
and more chances are there for success.