Paying for a tipster that is only good on low liquid markets is not a good idea
From ur list Marco Cage only place bets on low level basket leagues
Bobic only places bets on low level soccer league
Bookies will limit you fast plus the max bets on these leagues are too low so paying for these doesnt worht it IMO
Unless you can show me a tipster that has atleast 5% roi on a top league like NBA / UFC / MLB / NFL / NCAAF etc . I would pay for that no problem