The last time i checked those i were with something like 0,30 dollars with i believe 30k captcha solved, soo i may assure you that the rates they pay doesnt worth the cost or income, for you be able to make profit there you need several active members and claims of 1 minute or 3 minutes between claims, atleast those were my vision about those, i might be wrong.
30k solved and they paid 0.30 cents?
My story is also same like this when I started my faucet journey than I also decided to opt solvemedia but the revenue was very little than I thought it's not worth to use because users generally hate to type words and bot was enjoying solve media captcha because this is worse captcha for Bitcoin faucet. So I moved to funcaptcha but after some month Funcaptcha also decided to kick out free users and they changed "free to paid". Funcaptcha paid service is not profitable for faucet users untill faucet website make daily $100.
Than I moved the only best google recaptcha which is not 100% secure but users like this captcha and it's free also.