Night clubs are a great business for anyone to invest in at this current point in time, and as a result of the fact that this is the case there are a lot of new investors that are looking to get in on this market without a shadow of a doubt. However, you do need to figure out some way in which you can cater to a niche in your night club, since catering to the masses is no longer the top notch business approach that it once was and in a lot of ways it might just result in you failing to capture a wide enough audience.
Goth night clubs can be great for you for the reason that they cater to a niche that usually tends to have a surprising amount of money and is not afraid to use this money either since they know that they will have fun if they do. If you are planning to cater to this specific niche then you definitely need to go for Black Metal Kards since they will improve the vibe and anyone that you give them to might just end up appreciating the darker color scheme that you decided to rely on.
You need to incorporate a goth theme into every single part of your branding philosophy, since people that belong to this community are very close knit and they tend to avoid places that use bright colors. A black colored card will show them that you are an enterprise that knows what its doing in this regard which can really boost your sales in a big way in the future all in all.