You want to buy PS Vita ? Go ahead and start saving US$249.99 for WiFi model, and if you want 3G/WiFi model then save $50 more. Spending this much will make you a proud owner of Sony’s upcoming handheld device – but there is a problem, some of the games require an external memory source to save your progress.
Therefore, you will have to buy a memory card for PS Vita and you can choose from the following, subjected to your budget: 4GB (¥2,200 or US$29), 8GB (¥3,200 or $42), 16GB (¥5,500 or $72), and 32GB (¥9,500 or $124).
Make a smart decision and good luck!