If I am not mistaken, Burst was playing at a 60sats price for a long period before burstnation and bitsler came into play.
And as you know, since being added to the fastest growing gambling site, price went up along with the demand, and so more people started/resumed mining burst that resulted to the supply which is much larger than the demand.
Just my thoughts.
The current price down is not because of demand and supply but due to crypto market crash down. Not only burst but all other altcoins also went down a lot. If you have invested don't sell now instead buy some more and average down your price. You will make a good profit in next few months time. If you're a long-term investor then no need to worry much about current price corrections.