Yeah, definitely if the fragrance isn't too expensive (<$30), I probably won't mind buying it just for the bottle even if the juice is terrible or inappropriate. Unfortunately, none of the bottles I like fall into this category. Right now, I just hope that Narcisco Rodriguez releases an Essence for men and have Lovegrove design the bottle again.
I just noticed He Wood by DSquared2 and it looks awesome! I'm gonna try a sample of it first, but I might just buy it even if the scent is just so-so. The good thing about designer fragrances is that they generally aren't repulsive, so even if they aren't fantastic, they are probably still wearable.