Hi Zoe,
I just went through this exercise. I settled on a pair of Sennheiser Momentum over-ear phones.
Cost was $40 over your budget acquired used from Amazon Warehouse Deals.
There is a smaller on-ear model that can be had in your budget range.
Grados are fine phones, but designed mainly for in-home use.
Phones designed for portability these days have very good sound quality and other features that make them more amenable for someone on the go.
The other line with more portable models I liked a lot in your price range besides Sennheiser was Audio Technica.
Philips also had some interesting models, but did not get to try those.
High quality ear buds (not like the ones that come with most portable devices) are another option. I have a pair of Klipsch S4 buds also that I think represent a very good value for very good sound quality and are also most portable, if teh more "in your head" presentation of in-ear buds is not an issue for you.
I just went through this exercise. I settled on a pair of Sennheiser Momentum over-ear phones.
Cost was $40 over your budget acquired used from Amazon Warehouse Deals.
There is a smaller on-ear model that can be had in your budget range.
Grados are fine phones, but designed mainly for in-home use.
Phones designed for portability these days have very good sound quality and other features that make them more amenable for someone on the go.
The other line with more portable models I liked a lot in your price range besides Sennheiser was Audio Technica.
Philips also had some interesting models, but did not get to try those.
High quality ear buds (not like the ones that come with most portable devices) are another option. I have a pair of Klipsch S4 buds also that I think represent a very good value for very good sound quality and are also most portable, if teh more "in your head" presentation of in-ear buds is not an issue for you.