A place in China, Jiangyin is an interesting place to visit, given its unique culture, history and character. A gripping city on its own right, Shanghai also deserves a visit. Attractions in Shanghai include Nanjing Road, The Bund, Xintiandi. Also, to reach Jiangyin, you'll have to take a flight to Shanghai; so its not really a detour. And even if it is, the city is worth paying at least a quick visit. A holiday in Jiangyin can generally be of 1-2 days.
Yes,it is that simple really! Enjoy your trip! Keep travelling!