A couple of headphone needs,

I have had good success with feedback from other AudiogoN users, so I am asking:  What have you enjoyed in a pair of inexpensive headphones.  I asked this before, but have yet to purchase and now have an expanded need, both I am my youngest son are in need of a pair.  For my son it is his main system and for me it is my bedroom/2nd system...and both are the Nakamichi SoundSpace 5.   I have not had any headphone experience for many years.  In the past it has been those green Koss 4a?,  Audio Technica electret condenser.  Also had used some others in the past but nothing in years.  For both my son and I they would be used mainly for late night listening.  Thanks for your thoughts. 

My son and his friends got Sony MDR-V6/7506 on my recommendation. Real bass a little crisp on top but great for monitoring and easy to drive via a DAP The only dig is they shock a little in extremely dry climate on a pile carpet. Use a little anti stat laundry spray. One can lasts 20 years.
I’ve had 2 pair for 30 years; the only wear is the earpads flake after 15 years, not affecting sound. Replacements are readily available.
Late night? I can't count the number of times I pulled them off thinking the sub was playing.
What is "inexpensive"? The Sennheiser HD 6XX from Drop at $220 are one of the best values out there IMO.
Depends on cheap is right. I like open-ear headphones like the Grado's, $125 to $2000. You might like them too since he'll be able to hear you or your wife yelling for him! But they lack the deep heavy bass kids (and others!) go for. My son has been using Bose due their excellent noise-reduction, and they actually sound very good. One factor is if possible to try them for their weight also, not just for their  sound quality. I got talked into another set of headphones that I never use due to the weight of them.
I used to hate headphones until I got the Meze Empy. It is fatigue free and I can listen for hours late at night (like right now). It is however $3K. Meze also make a headphone for $300 that is supposed to be real good, 99 Classics. Supposed to sound a bit like my Empy.