Sometimes, in the interest of saving money in the beginning, we might actually pay more in the end. I don't know about all of the tractors available in the 28 HP range, but if the 2815 is as capable as the 2615, and I can't imagine it wouldn't be; it is worth every penny. If you can find a tractor with the capabilities of the 2815 for less money, you might be a fool to not buy it. On the other hand, if you can't find a tractor with the same abilities, you might be crazy to not buy a Mahindra. You'll want to keep your tractor a good long time, I'd hope. What you pay now, spread over a multi-year time span, is hard to measure. However, as an example, if you found a tractor for a $1000 less than the 2815, but you really wanted the Mahindra, how much more would that $1000, work out to per month over a twenty year time span?
A thousand dollars divided by 240 months is just a little over four dollars per month. Would it be worth an extra four dollars a month, or thirteen cents a day, to own a fabulous tractor? Buying a less expensive machine in the beginning, might not be less expensive in the long run. Let your research be your guide.