I don’t really know why Arteta chooses Madueke, we all saw how Madueke performed when he was in Chelsea, his performance was not so good, so I expected Arteta to get a better player, but as we can see he is really happy signing Madueke, let’s see if their will be improvement in Madueke performance when the season start. Most Arsenal fans are not happy with Arteta signing Madueke, and Chelsea players are happy that Madueke is no longer in Chelsea, Madueke performance wasn’t so good at Chelsea.
It's actually quite difficult to compare the performance of Chelsea players because they have a lot of competitors there so when Arsenal are interested in Noni Madueke it means they are looking at it from another side. Apart from that, Madueke is a young player 23 years old well maybe Arsenal wants to implement long term investment, who knows in the next 1-2 seasons his market value will reach 100 million.