You really think a $20 IEM can compete $100 IEM (already amazing value) that competes with others costing 2 - 3 times?
So if my maths is correct, you think it's possible for the Delta's to compete with IEM's costing 10 - 15 times more
Not trying to be rude, just saying it's extremely wishful thinking
As fnkcow was trying to say, price really isn't a good representation of the true value of a set of IEM's, and it's a poor reason to use as a guide on which to base why to buy a set, either. I'm not saying the Delta's are the best ever and can compete with the best of the best in the under $100.00 segment(although they do give most of them a good run for their money ), just that the overall package presented(sound, build quality, looks)are a vast improvement on what we see from manufacturers at the price point they are offered at($20.00). That's what makes them so good