Because I'm not specifically talking about the OP, I'm talking about everyone.
The general argument against using OwE in terms of limiting the gear you can buy is just complete baloney.
Using OwE increases your gear options.
It limits your passive options and that is it.
Actually if you think about it, OWE does in fact limit your choices in a negative way.
Because the cap of secondary resists is 20 less than AR, that means you need it from more sources to achieve the same result. That means for people with ANYTHING less than an unlimited budget, giving up dps rolls potentially.
If you try to get to 600 AR from single stacking both with AND without OWE, you'll find yourself needing it on EVERY non weapon slot for OWE almost. Unless you get perfect 60 rolls, then you have ONE slot free! maybe two if your INT is high enough. With AR rolls, you're looking at 7 max rolls + INT. Usually though, it's a saving of 2-3 affixes.Not only does using OWE require more total affixes to accomplish the same result, it also requires a passive to do so.
It's called a crutch
because it lets you accomplish something sub-optimally. Just because it saves you money doesn't change the fact that it's inefficient from a min/maxing standpoint compared to the alternative.
Many people choose to rid themselves of OWE earlier rather than later, which is a smart choice. As Shade has shown us, the longer you wait to gear out of it, the more you'll end up paying the closer to the top you get.
The real question that each person needs to answer for themselves, is at what point does efficiency outweigh saving money. It's the same reason why people buy Hybrid cars despite them costing more than their non hybrid counterparts.