Keyword research

Other numbers can definitely be accepted it all depends on the factor of time.. If you are creating 100s of micro keyword sites then yes with proper and consistent onsite/offsite SEO your site should stick in top 10 for a long period of time bringing in some steady profit

Depends on what sort of keywords you're targeting, your niche, etc. and what your goals are.

While the searches per month may be close to something you want to shoot for as long as your number is exact searches. Really though there is no hard and fact number to look for, it is always a balance of the money you expect to earn vs how much work it will take.

Your competition number however is completely meaningless.

All the competition numbers you see really have no meaning at all. If you are planning on try to make money from Google traffic you need to be on the first page. Since this is true the only competition that really matters is those sites on the first page. Those other 69990 sites do not matter at all, they are not your competition.

If you are thinking about a particular keyword do a Google search and take a look at the sites on the first page. Then you ask yourself two questions. Can I beat any of those sites? If the answer is yes then you ask yourself another question. Will the money I project I will make give me enough return on the work/cost involved in beating those sites? If the answer is yes to both questions then you go for it, if the answer to either one is no then you move on to something else.

I like to add to this that the more search the better but you must get the competition to be very low and the lowest the competition the best chances for you. Get a few keywords with lowest competiton and you will have a good amount of traffic flowing thru your sites.
I hope this helps.