Nah, you shouldn't be afraid to ask.
I'm concerned with mainly two things that held me back from buying the HA-S500 right away (because it actually looks quite stunning!):
1. Reading the different reviews and impressions it wasn't quite clear if the mids were just "not recessed" or "nice and lush"!? Some wrote that the HA-S500 is neutral with a tendency to be cold or at least not 'warm'. As mids are quite important for me I couldn't really ignore this potential 'flaw'.
2. I fear that it's not comfy for my ears because it'll be neither over-ear nor on-ear for me (big head, above average ears)... and I need headphones that are comfortable for 2+ hours.
Those were the main reasons. Perhaps I will give them a try in the future as they're dirt cheap and have perhaps an better sub-bass impact than the DTX501p - but that's just my guessing.
regards.
bearmann