They hit a sweet spot of having basically everything. Like the n30 has pretty much everything you could want - sd card slot, super fast charger in the box, headphone jack, screen with no pwm, relatively low price, fast cpu, huge 8 gb amount of RAM so apps never need to refresh when you switch back to them, all the antenna bands for the fastest data speed and best reception coverage area, good software with almost no pre-installed bloatware, etc etc. It honestly is just about perfect!