I thing you should buy L3+ because you will get your return only 45 day and after you will make your profit just thing about 45 days you 2100 doller but on s9 5 month after you only collect 1100 doller .
Just if mine with L3+ in 5month you will make 8400 dollers just and after that you can buy s9 with your profit .after that you have 7300 doller and your L3+PRICE IS 2100 JUST MINEUS ON YOUR PROFIT NOW YOU HAVE 5200 DOLLERS .AND THIS YOUR PROFIT .