Just get a CX180. Having spent more than 6000 bucks on earphones at different points -500,600,800,1500,1500,1900 I have realised that the CX180 are really unbeatable at that price point. That is if you like bass.
Right now have a pair of CX180 and M1 sitting on my table.
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Ratul carry a small case. Trust me it will be odd but worth saving a few buck on new earphones every time. Even I keep them in my jeans pocket and close to behead them each time I pull them out. No to mention accidently sleeping on them, stamping on them in the morning, finding that you are sitting on your phones all along and finally realising that your torture has shown results. Yes the earphones are dead. Now all earphones are prone to damage, even if you spend around 7k or more. I am not sure if the detachable cable ones are more durable, they are not doubt but then 6-10k for earphone. Thats a lot.
So -carry a case
P.S. I got one with my M1 and I carry it in it or which ever one I decide to carry.