They have over 14 million members and this itself works in their favor.
If you're looking for a serious stable relationship with a wealthy person who shares your sexual preferences, go for general dating web sites.
This holds true, irrespective of sexual preferences or even gender.
Besides, if you want to limit yourself to millionaires, you can always search for people having income about a certain threshold even with general dating web sites. These web sites give you anonymity and if you're shy about approaching prospective dating partners, this can be a big help.
All these web sites have a power search or advanced search features wherein you can locate people who have a certain minimum income. is a community dating web site meant especially for gays.
There are quite a few millionaire dating sites on the internet.
Most seem to be focussed on playing cupid between millionaires looking for 'sugar babies', girls and women looking for a wealthy man to take care of them and provide favors in return.
There is a very good reason not to go via millionaire dating web sites to snare a millionaire.
When you go this route, you make it too obvious that you're looking for someone very wealthy and come across as a gold-digger.
Some of these are more like glorified escort services.