the faucet and the limit on the faucet differ from site to site
some new sites give out big amounts of money with their free faucets to attract players
there is a very low chance for a player to start depositing to a new casino without trying it out first
on the other hand ,Primedice is an established site with a huge player base
so if they see that the amount of money they give away through their free faucet doesn't serve its initial purpose of attracting new players
they may as well cut it down