New case? Can't decide or find a good one

Well I've been looking at a few cases

400/500r, problem is it's a bit basic(boring) and has no side window, a side window is important to me
300r, has side window but it's pretty cheap and is missing a lot of features from newer ones such as cable managment and compatability
NZXT Phantom 410, well priced, looks sexy but inside looks like it was designed 5 years ago and impractical for the most part

and finally my most favorable, the 600T, main problem is it's stupidly expensive, I can't afford that, same with 650D or w/e its called

Haf X, ticks all boxes but the side window is horrible, it shows off the top of your CPU, half your ram and has a huge annoying fan mount on the side and it's a more than I want to pay
haf xm same problem but you can only see your gpu, no full view

 

All I want is h100 support, decent window, easy for building like good cable management and tool-less stuff

am I really going to have to fork out like £50 just to get these options, why can't the 400/500r have a side window?