I have a Mahindra 3505 DI that I inherited from my grandfather. Been a great tractor, 35 hp diesel, 2WD, very heavy compared to the new tractors. We have several attachments but I desperately need a front end loader. Surprisingly it's hard to find one to fit that model. Only one I've found is Westendorf and they wanted $7200 for just the loader, not-installed. My grandfather bought the tractor new for $10K in 2002, so I can't really justify throwing on an aftermarket loader at 3/4 the price of the tractor, especially with the tractor just being 2WD. Just going to save up and eventually upgrade to something that fits my needs a little better. Still though, it's amazing the work I can get done with that thing. My wife and I just bought 18 acres that we maintain with it.
I've been told that spreading pine needles makes a suitable pH for blueberries in our area. Never tried it though.