You can tripple the money online in one year. Why then expecting so less? Actually this is how i do my business tripple is must.
even if you are looking at purchasing anoperating website...you should be looking at earning more than that per month
buy a good established website that have good traffic and revenue , you can get pretty much good offers , try - www.websitebroker.com , or you can start webhosting buisness - pretty hard labour with risk that no sell.
It's not that easy how we think. Even a established website need some work to make it stable. Site also depends on many other companies like adsense, ypn and they can anytime lower the CTR. So takin right decission at right time is also important and for that you need to be active in webmaster industry.