No talk of selling, against GC rules. Best use of males is for pollinating females when you want seeds. You can harvest the pollen and apply it to select female budsites to get as many seeds as you want and leave as much bud unseeded as possible. Otherwise, you can add males to your trim pile if you are going to make hash, but I haven't found them to add very much.
Can never have too many seeds. If you liked them enough to buy them, germinate them, grow them and then enjoy them then having a bag of seed of the same stuff sounds like a great idea.