R.B.
If you plan on running that much and at least that many miles do not go to the cheap route. You will pay for it. I know many people that went with a cheaper double jogger and aren't happy. It doesn't glide smoothly, turn well, harder to push, etc. I have a double BOB running stroller and put lots and lots of miles on it. It is the greatest. WELL worth the investment. I bought mine at REI. About twice a year they have a big 20% off one item coupon and you can use it on the BOB. You could wait for that.