You still can't power 2500W on a standard home circuit in the USA. Most homes have 110v wiring, at 15A or 20A. That puts a reasonable max of 1500W per circuit, and even that's pushing it pretty hard for a lot of homes. You basically require 240v for a 2500W system. Many people in the US don't have access to that, or only have that wired for the laundry room and kitchen.
If someone can afford to drop >$10K+ on hardware, they can drop $200-$500 to drop a new power outlet in and have it wired professionally, or co-locate their equipment.