Hi, there is very less 3D content available..........so investing in a 3D tv is a personal choice. I would save the money and get a really good 2D tv instead. But, if 3D is imp and you would like to be future ready, then look at Panasonic VT, GT, ST.......some of the best 3D tv's in the market and all with neo pdp panels. Pan U30 does not have the neo pdp panel which is what you should get in any pan plasma. If budget is a constraint would suggest to go with samsung rather than the U30. There is also a general consensus of plasma being recommended over LED for 3D but then again that is a very personal choice.
Remember to request the sales staff of the store to turn down the store lighting to the min when looking at any plasma demos. LED will look good in normal store lighting but to really see the magic of plasma you need to turn down the lights.