Disagree. I don't think the prices of some or in this case most alts are cheap.
Most of these coins have market caps of upwards of a £100m and offer very little different to each other.
I'm just disapointed I left 25% of my portfolio in alts. Now worth approx 10% of my portfolio.
Best you can do is hold then. You haven't lost your money until you sell coins which you have bought - remember that. When bitcoin is doing bad alts are doing worse. Because portfolio can't have huge impact when bitcoin is going down in price. As this is how the whole market moves. When bitcoin is healthy and slowly raising then you might even look at your alts taking like 35-40% of your portfolio depending on which coin you own now and if they raise in future faster than btc ofc.