I think the service is fine as is. Leave well alone and admire the machine!
I'm pretty sure the service will stay as it is. No signs of change anyway. Things to admire? Truly low costs, the effectiveness and a decent reliability, yes. But the expansion based on this too-simple model has its limitations. I am just saying some symptoms of these limits are already visible, that's why I see also the need for changes. Admire the machine? To some extent, I still admire. I just hope we both can admire it showing as much optimism as you are showing today... two or three years from now.