what is your policy ? When there is options available, you don't include them (base model with no heat bed and dual extruder but option available)
Right, at the moment we show the specs for the default version that is available for the indicated price. We are already working on the next version of the chart that will include optional components.

It would be nice if you could include other parameters : price and volume are not all there is to it. Perhaps warranty, heat bed, hotend max temp,... might be interesting too ?
Yes, we are in the process of entering these parameters!