Give your needs a lot of thought. If you have a half dozen stumps to remove, rent a real grinder for a day. If you might want to do a drainage tench or two, rent a Mini-X. These rentals will be a fraction of what you'd spend on implements that will just take up space and likely not perform as well as dedicated equipment.
Use the cash you would have spent on the infrequently used attachments to go as large as practical on the tractor - or as large as your heart desires. The bigger you go with will prolong the time between now and when you swap it for a larger one. The arms race for me could have stopped with the B7500. It would do most of what needed to be done. Seemed like it often ended up being a bit light, lacking a few horses or not being able to lift stuff that needed lifted.
Use the cash you would have spent on the infrequently used attachments to go as large as practical on the tractor - or as large as your heart desires. The bigger you go with will prolong the time between now and when you swap it for a larger one. The arms race for me could have stopped with the B7500. It would do most of what needed to be done. Seemed like it often ended up being a bit light, lacking a few horses or not being able to lift stuff that needed lifted.