I base my villager pricing on my own opinions not really a tier list..... I very loosely base off that. I had someone offer 300 TBT for Mira but conflicting schedules complicate things. XD Plus she is also number 1 in tier 3 and I've seen her wanted more than a lot of tier 2 villagers.
But to each their own I suppose. You can save your TBT if my pricing is too high, it's no problem. ^^ I don't really want to let her go for 50-75. Sorry.