I do apologize for starting this Mahindra thing. Sense there's been some comparison's made and a few other coments made, including by the original poster, I'll add a little.
The best price on a 5500 4WD w FEL/QA that I found was $20,745 delivered ~55 miles.
In my very unprofessional yet researched opinion, (NO OFFENSE intended here).... I do not believe you can completely compare a 5500 with a 5105 or a 4900... based on the specs the 5500 weighs more than either, lifts more than either, bigger tires than either, longer warranty than either, and is priced at least a few thousand less than either. It's still not exactly apples to apples. The only downside I've heard thus far is resale value... but I don't know many who have tried to resale them. From what I could gather, once they get them they don't want to get rid of them. If resale value is important to you then maybe Mahindra is not the one. Personally I'm keeping my tractor and hopefully my grand yougens will get to enjoy using it... by then maybe it will have as good a resale value as the others. If I'm not mistaken (which I could very well be), didn't Mahindra manufacture more tractors in the US last year than any other manufacturer? If you really investigate this company, they are indeed impressive, again IMO.
I do realize this does not necessarily make it the best tractor on the market... it was just the best tractor for me.