I have been unemployed since March and decided to start my own business since my job hunt has been less than fruitful. My new job will require on site sales calls and PowerPoint presentations, so I am in the market for a laptop. In my last job a co-worker had a surface pro 2 and liked it so I am leaning towards a pro 3. I could however use my son's old laptop for a month or 2 and wait for the pro 4, I read it will launch in 3 weeks (October 6th, 2015). If you were me, would you get a pro 3, they are on sale for $150-$200 off, or wait for a pro 4? I am just looking for any advice from those who are surely more knowledgeable than I regarding the Surface pro line. Thanks in advance.