$150? Don't devalue SEO. If you're selling Airsoft Guns, how much more business will you get from being on the first page? A lot. If you're selling advertising space, how many more advertisers will sign-up? A lot. $150 doesn't justify a good job for SEO. Remember, you get what you pay for. That being said, it would not be fun being only 40 spots out of the 1st page to going to page 10.
Amen. You are either going to get; A: Someone will take your money and not get you to top10 or B: Nobody will do that offer for only $150.