I see everybody replying that it is about supply & demand and that a lower supply has a positive effect on this.
However. What is a lower supply? I mean, if a 200m project sells only 100m tokens in token sale rounds and of those tokens 60m are actually sold, then 40m will get burned, which leaves 160m total. However, part of the untouched 100m often is sold to private investors, not included in main token sale. Rest of this 100m goes into development and team (among others).
So yes, supply is lower, but more tokens are in the hands of a few....and the ratio is becoming less and less favorable to invest in it anyway....and those people holding the 60m will want to sell.
I wonder if like ts said it is perhaps better to only burn a part, just for the sake of it (keeping investors happy). But keep a part for promotional activities. Maybe use if for high volume (real volume) exchanges, or to attract more investors?
There currently are quite a few projects that became a dumping ground simply because most of the tokens were in the hands of private investors.....how's that for supply and demand