So, I currently own a pair of soundMagic PL50s, but the grilles covering the drivers actually came out (the glue started to loosen), so I'm either looking for replacement tips that will take care of that problem for me, or a new pair of IEMs. I want to stay under $200. A sound signature similar to the PL50s would be fine, or perhaps something with a touch more extensive bass and less shrill highs. I was considering getting a pair of Hippo VBs but I'm not really a huge bass-head, I'm just looking for something a bit more neutral. I love the sound of the HD555s/595s so that should give you an idea. Comfort is the absolute biggest concern though, and I would get custom-molds in a heartbeat if they weren't so expensive. I found the PL50s decently comfortable but like all the other universal IEMs I've tried, they would fatigue my ears within 30 minutes to an hour of insertion. I'm attributing that to the crappy foam tips that were included with the cans, but they were the only tips that gave me a proper seal and at the time I wasn't willing to buy "aftermarket" tips.
tl;dr: want a neutral-sounding pair of IEMs for <= $200. Comfort is paramount. If customs exist for that price, I'd like to know.