Replies like that are why..
Bottom line is, if someone offers advice, and someone else offers a slight correction, its to be expected in help topics.
We all get corrected or advised on improvements to our advice at one time or another, Accept it, remember it for next time, and move on.
No harm done, and certainly no need to be funny about it.
He wasnt trying to knock you, He was correct, the EzRun early editions are a bit outdated compared to the XeRun systems.
Although you will struggle to find them in the UK, a 150A 2045Kv or 2250Kv system can be had from hong kong on E-Bay for about the same cash.
You can also get them sensored too. Ive always been a fan of Hobbywing stuff. The motors are average, but the ESC's are the finest i have ever used, bar none!