Because they can. Like I have said before, there is a lot of talk on this forum.
I see very little action.
I highly doubt there is any poster here that would spent the money on a CSL just to take it to the track, mostly because many here just dream and can't buy.
But in the meantime telling the ones that can, how much the hate what they do.
If you want to be a purist get this
It's going to be cheaper, faster and a pure track/ streetcar