It's a collective hukou to move to Shanghai, so it's better to move here. Even if it was easier to move back then, there are still some advantages if you stay and work in Shanghai in the future. For example, this year's World Expo will get tickets for Zhang Shibo.

There are still some companies in Shanghai that must pay social security accumulation fund or have Shanghai residence permit (although it has been stipulated that it is not necessary, some companies do, such as our company). It is very troublesome to apply for a residence permit. Why not save this thing? Maybe there will be a policy in the future to say what preferential treatment Shanghai hukou has in Shanghai. It's settled anyway. At least you have the choice.