I read a bit here and their for about a year.
At one point I tried to get my 2 best friends to throw in some cash and build a project Supra (Which would be owned by the 3 of us), with either the 1J or 2J in mind. They didnt wanna front any money, and didnt think the project would fly (I then spent a couple months, all on my own, swapping it, and now I own it, and not them LOL).
Almost a year or so later, I knew I was recieving a Iheritance check for 4K very soon, and found a great Donor car at a great price. With minimal mechanial experience of my own, and 1 motor swap prior (5SFE to 5SFE in a '90 Celica) which fell apart in 4K miles, I saw the purchase of my Rod Knocking car as the writing in the stone saying "Theirs no turning back now".
Anyway, Cost was a big factor, if I had a lot of money I would have gone 2JZ instead, simply for the extra stock power. So for me, it was the most powerful motor I could afford to drop in the car, plus with no BHG issues like the 7M and all the talk about people saying it was a Indestructable motor, I was sold.