A question regarding spread limit and online stud

[Tom Bayes]

I rarely play stud live or online. The only stud I've ever played in a B&M is the $1-$5 spread limit stuff with no antes and a $1 bring-in that attracts crusty chain-smoking old rocks who get pissed if you bet the max before 7th street.

I was just curious why I've never seen a similar structure for online stud (i.e. I've never seen something like a $0.10-$0.50 spread limit w/o antes). Is there a good reason ? I'm looking for something more profound than "1-5 sux"; I already know that [img]/images/graemlins/wink.gif[/img]