Get your Wiimmfi Friend Code posted to the database (My Friend Codes on the left) and we can proceed. I played today and bought 6,200 turnips this morning at 98 bells each and I'll be closely monitoring the prices all week (because I want to make money, not lose it).
For the record, I also bought 6,000 turnips on New Leaf (3DS) and a whopping 14,400 turnips on Wild World (DS). The good news for me is that I have all of those rooms full of tables, so I have the luxury of waiting for an awesome price on Wild World. I spent ALL of my money on City Folk filling my one-room 8x8 house with turnips and they HAVE to be sold this week (turnip table trick doesn't work anymore). In New Leaf, I have a full BOX-C of Turnips, so 60 spaces each with 100 turnips. That makes it easy to visit someone who has a good price and sell everything.