Yeah, I do agree on what you have said that this is the great opportunity to buy back more tokens but I would rather suggest to buy from established coins like ethereum, ripple, cardano, and many more. buy on dips and sell on all time highs.
Well I doubt buying back right now would be a good idea first of all because bitcoin dominance is still quite low. Looking at the past the altcoins should keep on dropping for now and when bitcoin reached dominance of 50-60% then I would buy back into altcoins.