There are a number of the inexpensive KZ offerings that are really good for the price. When it comes to under $15 KZ has a number of great options. I think that at least in part this is why the newer expensive designs had the big initial hype. They just seem to have missed using what they were doing with the earlier models in creating their newer I'm sure more profitable designs. Other than the ZSR and perhaps the KZ 5 v1, which I've never heard, what newer models don't have extra highs and bass, ie an extreme V tuning, that people actually like? I've been impressed enough with those earlier designs and the ZSR that I decided to get the ZS10 even though I didn't plan to initially and also the ED15 since I really liked the EDR2 and HDS3. If neither of these turn out well I'll probably stick with things like the Yersen FEN-2000 and TRN V20 both of which are more than $10 less than the ZS10 and deliver amazing musical tunings as opposed to the fun V which I don't generally like because I like midrange.