Wouldn't call this system complicated, that's how ticketing works in many (if not most) countries in the West and I know a lot of people who actually find the lottery system weird, confusing and unnecessary
as for dynamic pricing, ticketmaster already does it for some of the concerts. It sucks for the fans of really popular artists but with someone less popular you can actually get tickets way cheaper than the face value without having to buy from resellers
Although I personally do prefer the lottery system myself..