I agree with what you have said,I don't hold tokens as many as yours I am only holding the tokens I got from bounty campaign and I'm still holding them because the price is low and it's only a small amount that's why no problem if I will hold for long time.
Holding ICO tokens from bounty campaig is good at the start to give the token a chance to have gains in the market. But, past experiences with bounty tokens made me regret. Most bounty tokens instead of gaining in value, they decrease in value. So, better to evaluate each situation very well.
I agree with you, the average ICO token only rises at the beginning of the token issued on the market, several times I experience something like that, but I am stubborn always holding the gift token that I have, and now the risk now is just losing money pretty big, this was a hard slap for me, even though I was disappointed with myself but from behind it I made it all a very valuable lesson.