Of course, as I said there were pros and cons for both. That 18 lb EI core in the X8500H will likely be better and cost more than the toroidal in the 8012. You do know Luxman always use E-I core right? There are other expensive products that preferred E-I and there are not shortages of very cheap amps that have toroids in them. It is a general statement to say one is always better.
By the way, as I suspected the AVR-X3600H measured well enough to apparently got accepted to Amir's recommended list. So I guess the X8500H's owners can relax, as it can only be even better, with the extra shielding, better customer designed/wound 18. lbs "EI" core transformer.