So I want to get a pair of IEMs that I can use when running outside, or at work, as such I don't want to go to expensive (140+) as these IEMS will be used everyday for around 6-10hs a day 5 days a week. Isolation isn't a big deal as no one is near were I work and as I am jogging/running I will...

So I have been looking for a good pair of cans to upgrade to from my CoPs, and I have read a few reviews on Mad Dogs but arn't they just a modded pair of a 100$ pair cans? How hard would it be to buy the 100$ cans and mod it? I just find it weird that there is 200$ difference between the...