Remember to look at the exhaust system on the engine: avoid regenerating types! Mahindra's do not regenerate.
Another thing to consider, is the warranty period offered: Mahindra's have a 7-year power train warranty, transferable without paperwork. The Mahindra's are less expensive, so you get more tractor for your money. Mahindra also sells more tractors, worldwide, than any other maker -- not just a marketing statement, their sales are higher than all others, which speaks volumes, to me, at least. I have owned my Mahindra for 2 years, bought it used with 104 hours. I've worked it pretty hard. Love it! Still have another 3 years on the power train warranty!
Check to see if you have good, local tractor mechanics, closer to home.
Routine maintenance does not need to be done by a dealer! I do not take my car to a dealer, unless required... Parts can be had by mail order, typically, so you can get the maintenance done by a non-dealer mechanic, for less money. I did not know, nor did the dealer who sold me my tractor, if the PO had done the 100 hour service. I ordered filters, bought oil, and had my local tractor mechanic (a nearby neighbor, actually, who owns a professional shop) do the transmission oil change, as well as replace a transmission cooling fan I trashed doing some rough work on stumps of Red Sumac. The fan was exposed, by design, on the belly PTO shaft; I tried, unsuccessfully, to uproot the cut-off trunks, with the FEL, then I backed over 3-foot trunks, which popped up into the spinning plastic fan blades -- operator abuse; they also punctured the lower radiator hose, on the engine. I did not know about the fan blades. Now, I am far more careful to avoid backing over anything that might pop up.
Pretty much any brand of tractor will outlive you. Get the most machine, that you can afford.
Avoid regenerating diesel engines. Buy used, if you can find what you like, in good condition. My Dad owned a much used 1948 JD B. He sold it to my cousin and her husband, who now use it on their 100 acre farm. Take care of whatever you buy, and it will serve your very well.
If you need more HP than your tractor has for pulling stumps out of the ground, study up on snatch-blocks.
Cheers!