I would have to echo a few other posts. 1st what is defined as "high end"? Are we looking at a $50 skilter (100g rated Hahaha) vs a vertex 180i (also rated at 100g)? Or are we looking at skimmers with the same size necks as too large or too small will not perform well? Or similar skimmers with the same air and water flow draw? Is electrical efficiency important to you?
After we narrow down what comparisons we are looking at I think we look at design features. How easily does the body come apart for cleaning? How reliable is the pump? How thick is the acrylic? Are any of these features important to the person buying the skimmer? Some may not care about disassembly for cleaning if they can save some money, other people might consider that a key feature. Does someone want to pay more for a sicce pump that could last a decade or more or are they ok potentially buying a new pump every couple years? How large is the cup, can you auto clean it or drain it, how is it attached for removal? There isn't really a right/wrong answer here, just factors for consideration.
Will one be carbon dosing or is that something they might be interested in the future?
There are just a lot of factors to consider with a question like this one and some individual preferences as well.
After we narrow down what comparisons we are looking at I think we look at design features. How easily does the body come apart for cleaning? How reliable is the pump? How thick is the acrylic? Are any of these features important to the person buying the skimmer? Some may not care about disassembly for cleaning if they can save some money, other people might consider that a key feature. Does someone want to pay more for a sicce pump that could last a decade or more or are they ok potentially buying a new pump every couple years? How large is the cup, can you auto clean it or drain it, how is it attached for removal? There isn't really a right/wrong answer here, just factors for consideration.
Will one be carbon dosing or is that something they might be interested in the future?
There are just a lot of factors to consider with a question like this one and some individual preferences as well.