I believe the new iPad mini with retina will be based on iPad3 technology - this is how Apple will keep a healthy distance between the iPad and iPad Mini.
The small form factor comes at a price I am not willing to pay knowing that the iPad 5 will be the next-gen tablet, faster, lighter, etc. - to see that kind of technology in the iPad Mini you would have to wait for some yrs (2+) ... so for me the decision is easy - iPad 5, paying today's money for technology of today.
tres simple mon ami
Oh you were referring to the next iPad mini? Ok, then I understand why you wrote iPad 3. I thought you meant that the current mini was based on iPad 3 (it's basically a shrunken iPad 2). I will most likely get the iPad 5 when it comes out, but if I can get a retina mini for a good price at the same time, then I might get that instead.