Worth getting fem seeds?

wanted to get an opnion from you guys.... wondering the extra money is worth it.

having trouble with males getting a lot of hermies, then try some fem seed. greenhouseseeds.nl are about the best. or Skunk UK Ltd | Skunk seeds | Cannabis seeds are doing a sale of D.P.fem seeds check it out.

id rather get a regular pack jus so you can use the males to produce seeds so will have like 200 of whatever strain you sex. then u can jus grow and take clones.

interesting. okay. so what about nirvana? seems like rollitup is either endorsed by them or supports their services. are they reliable? and do i have to purchase their stealth packaging?