The ping totally depends on where you live though and how fast your internet is. This cannot be blamed on RTB's Dedi server considering I used to have really slow ping on all of Kalphiter's servers until I got fibre optic. (Fibre optic giving me 50mb/s download and upload, friends!!)
But yeah, you shouldn't totally judge the server dependant on the ping. Lub is also going to give us an option to buy a server in Germany which would be useful for those dedicated servers which'll reach around them people who are close to the data center.
The ping is totally a matter of where you live and how powerful your internet actually is.