Ich weiß bis heute nicht ob es sich bei denen um ne echte Band handelt. Aber zumindest sind es die selben Typen wie in ihren Videos, also möglich ist es.
While they have some cheap sets, I'd strongly recommend to do your research before buying anything. Most cheap e drums are just bad. But there is some okayish stuff in the medium price range. Depending your location, you might luck out on a used set for cheap.
Use your favorite search engine to look for the trinity study and safe withdrawal rates. as a rough number: your yearly spending x 24.