What you say is correct but let us not forget the cycle continues and buying opportunities always come round at another point in time. It might not repair the feeling of regret after a particular crypto hits highs to become a super success but what it can do I guess is to allow a mechanism to soften the blow if some profit can be made with the same crypto in the future.
Me too, I absolutely believe in DASH. There are not really any major difficulties specific to DASH but what can be said is that the whole market has been affected. I think other crypto have been affected far more adversely than DASH, it is still an excellent investment opportunity.
Such great investment opportunities rarely exist. It often exists after 3 to 4 years so if one investor miss or ignore opportunities for this period, the investor will have to wait for another 3 to 4 years to see the same great opportunities.
Fear, hesitate, ignore opportunites, don't invest at great discount price and feel regret after all.