Yes the glue is available in different colors. however, all those machines you linked have a glue pot so once you have put one color in you are not going to be changing it easily, if at all. I actually know someone who has the Maksiwa and gets one for each color. On a side note he really likes them. the only issue with them is there is a drive chain below the unit and glue will drip down and collect on the chain and mess things up so he has to build a deflector shield in each. The nice thing about it is it applies the glue to the part not the banding so its easier to trim and less wasteful. The conturo applies the glue to the banding which = more glue waste and harder/gummier to trim. The Maksiwa is great for straight but wont do curves. Also large panels are a bit of a PITA unless you have it build into a bench to help support and keep everything flat and square to the glue roller. The conturo beats it for large panels. The Maksiwa is faster for door and drawer fronts though. It is nice not pre cutting the edgebanding to length first. I will say its not a matter of if you will do any curve work but when. At first I was ahhh Ill probably never need to do any curves I think my second or third project after getting the conturo had curves. Could I have designed it without curves? yea, but it would have looked like junk. The conturo is the only bander on the market that can do it all ( no glue pot, color changes, curved parts, small and large parts, and neatly/compactly stores away when not in use) Is it the fastest for all applications NO but if you just want one edgebander that will be able to accomplish anything (other than outdoor rated) the conturo is the only one on the market that can do it all. It is very well thought out with the exception of the MFT table top, It WILL sag and it will mess up the height after awhile. Festool really needed to add some extra supports for the MFT top sure a person can do it themselves but once you add everything up its something they should have thought of for the cost.