Dilemma

To go to Beijing only, or to make a trip down to Shanghai as well?
I could cover Shanghai in 3 days, which means I can arrive in Shanghai and take a train down to Beijing and leave from Beijing back to Singapore. I just checked the tickets for this route and it's only SGD506. But then I have to factor in train tickets from Shanghai to Beijing, and accommodation in Shanghai. Which is quite reasonable. But main reason would be to visit Shanghai Disneyland hahahhaha. Don't know if it's a good idea cause I'm pretty sure it'd be packed with.. local Chinese.

Hmmm, decisions.