WOrks as in functions/doesn't fail?
MagicMoments was a big proponent of HK linear speakers - then changed out to bose...when asked he said they failed and he had issues getting them repaired.
So even 'fancy' high end stuff can fail. Spending more doesn't always mean better ..by some definition.
Everyone I know that has owned a mercedes - a brand we all agree is premium in every way - complains about it being the most expensive car to maintain they've ever owned.
As a photographer it's the customers expection for me to get THE shot EVERY time. No excuses. Under ideal conditions even a cheap camera can do that, but under marginal conditions (lighting, weather, etc) you need the best or you can't deliver.
There is a difference in DJ gear as well - harder IMO to determine what that might be. or are there just that many good options that it's easy to choose well? Yamaha, QSC, EV, JBL, Evox, Bose - hard to do all that bad.
Gemini, Behringer...? Mackie?
Sometimes things just seem over priced - like $1300 microphones vs $300 ones..sure, the MIC capsules can be different, but c'mon, radio is radio. If the $100 setup can scan and doesn't drop what really is the 'benefit' from all the extra cost?
Like cords...or spark plugs - lots of hype but little proven differences.
"my milk is better than your milk"...yeah, hum, it's all milk.
It will if the Sennheiser works and the VocoPro/Gtd/Gemini/et al does not. I prefer to think of the extra $$s as sanity insurance ..