Wow - thats impressive stuff, I never expected such a full response thanks for that.
The site is PHP built with mysql database. Im not sure about onestat as I bought the site so the previous owner prob had that set up. A number of the sign ups come from the search grow weed as it is on page 1 for google on this.
The membership grows by around 50 a day and I have 40k email addresses to contact players who may not have played for a while. There has been a fall in visitors - I put this down to my lack of interest and time over the last few months and that since I bought it the game code has needed tweeking which still hasnt been done. I plan to have it re designed shortly by a top design company as it looks very boring at the moment, and I am going to add funny videos etc in a
www.dumpalink style (which I have seen grow to 1.3mil pageviews a day from abount half that in 3-4 months). This should encourage the 60k people to com back on a daily basis rather than them only visiting a couple of times a month - so I expect traffic to grow quickly and members to increase also.
There are plenty of head shops affiliate programs offering 10% off the sale of pipes etc and i have spoken to a lady who was taking £300 from 3000 monthly uniques from a site with content related to mine so I expect there could be a good income to come from that.
It still has to prove itself but looking at the above what could its potential be value wise...? I have no idea about these things - is 50k realistic or would it be worth a fortune if the above came off?