Absolutely not. I admit I have some tier 1 villagers but that's because I thought they looked cute and once having them I grew to love them. I don't like villagers based on what tier they're in. I think as long as you're happy with your town and you genuinely like the villagers then it shouldn't matter what someone else thinks. The best thing about this game is that there is no right way to play it. It is completely up to you. 
