Those with a keen eye for cases may have noticed that the Thermaltake Level 20 RS uses the same core frame as the Thermaltake S500 TG, which offers a good baseline to go by as the S500 TG clocks in at $100 and received a recommendation. The Level 20 RS pushes the boundaries when it comes to cooling performance by offering a metal mesh top and front panel while also including better cooling in the two 200 mm fans in the front. However, additionally, you will find two glass side panels, while the S500 only offered one. Last but not least, the Level 20 RS features a built-in ARGB controller, which the S500 TG lacks.
On the flip-side, the S500 employs a steel front, which may be enticing to some, and also sports Velcro strips for cable management. Other elements, like the mix of I/O ports, are the same, with the Level 20 RS featuring a nicer, white power LED and a RGB toggle button to control the internal PCB.
So from a pricing perspective, it comes down to the simple consideration of whether a $50 premium is worth the more potent fans, glass side panel, and basic ARGB setup, while loosing out on the Velcro strips and more plastic, with the design keeping Thermaltake from a more unique material mix. I would lean towards it being worth it had the fans been equipped with 3-pin or PWM connectivity, and the ARGB controller would have to be a more generic, expandable unit as well. As it stands, the Level 20 RS does not provide quite that same bang for your buck as the S500 TG.
That is not to say the Thermaltake Level 20 RS is not an interesting case. The ability to employ their distribution plate may be enticing, especially if you are into building your own custom loop, and the ARGB elements would then be controlled by the motherboard as well. Thus, for that crowd, the Level 20 RS would make a sweet chassis to put their build into while having plenty of access to fresh air and some cool exterior illumination.