No risk no reward lol...but I agree with a thousand dollars on betting can really do a lot instead of wasting it on betting but this isn't really a big deal to some people, everyone has their capacity and limit, losing this amount might not really mean much to him...The same way you said the highest amount you've gone on martingale is $31 some people might see that as staking a lot of money, it's all about betting responsibly that's the most important thing
A thousand dollars is too small if you are living in country that uses the dollars as their legal tender. For countries where the dollar has massive value then it can be a huge bankroll for gamblers in that region to play around with or they could use it to do something else instead of gambling with it. IMO, that amount doesn't do much these days, if you buy one or two device its finished.