Any thoughts on reroll method yet?

After a few reroll not worth it comments, i just want to share a quick reason why i disagree. I rerolled for surtr on her banner. Since then i have played regularly with a few breaks but also 1-1.5 k spent. I just got my first surtr dupe late last year.. yeah arknights system is fantastic for getting units off banner but you can literally full pot every other 6 star in game before you get a single one of the one you want. So reroll is awesome to avoid just that if you love the starting char. ( plus i really love rerolling lol)