You can make some small bets for huge odds. They are not so often and if the bet would be just few dollars - it wouldn`t make you cry. And if it win - you get nice profit even from $3-5.
As for me - i have a dream to win odd 100+. I bet always, when it possible, but still didn`t win.
I also have a dream to win that large, but I have never experienced any winning close to that number in a single bet, if I recall correctly. I have always been chasing that high odd on sports betting with the combination of different matches in a parley, which even gives me a higher odd than 100, but the result is always disappointing. To win such a big odd might come very easy and be based on luck if the player is steadily playing slot games and games that luck can decide your fate to hit that number at once on a faithful day.
It`s rather rare odd for single bet. I can`t compare risk between single bet with such odd and parlay. On the one hand - you can get 10-15 events with small(enough) odds, but even one mistake can break everything. On the other hand - the odds about 100 means that chances are really small. So for me more interesting to catch single bet, but i understand that chances are too small and make small bets.
PS. Also, single bets with such odds rare, so you can lose lots of money.