You don't see them for sale because we like them so much, we hang onto them.
If you are financing the LS at 5% for 84 months, at the end, you will have paid $43k. Basically the exact same price as the Kubota at 0%.
From a financial standpoint, (no, I'm not a financial planner), and with the financial mess that is the global economy right now (can you say recession right around the corner?) I would recommend saving your monthly payments until you can pay cash for the tractor. LS gave me a $2k discount for paying cash, further increasing the difference in price with the Kubota. Kubota offered no cash discount.
If the bottom of the economy does fall out in the next 6-18 months, like it's looking like it very well may, you may find a lot of dealers happy to make a sweeter deal. As my dad always says, buy low, sell high. Right now, prices are at all time highs.
But, if you feel you have to have it now, if it's Kubota at 0% versus LS at 4-5%, the final dollar amount is going to be within a grand or so.
If I were in that situation, I probably would have gone with Kubota because of the good, established dealer in my area.