Right, so like I said in my previous comment - you are the equivalent of someone telling Linus Torvalds "Why bother creating another operating system? MS-DOS already exists".
As someone who's used various DAWs extensively, Ableton Live most certainly is not perfect. It has a terrible piano roll (see FL Studio for a good one). Many have felt the same way, but they don't fix it and there's nothing you can do about it because it's closed source.
Of course building a DAW is extremely difficult. Doesn't mean that because a closed source version already exists that it's not an endeavor worth pursuing. I personally would love for there to be a quality open source DAW comparable to the commercial ones (if I were wealthy it'd definitely be something I'd bankroll).
As someone who's used various DAWs extensively, Ableton Live most certainly is not perfect. It has a terrible piano roll (see FL Studio for a good one). Many have felt the same way, but they don't fix it and there's nothing you can do about it because it's closed source.
Of course building a DAW is extremely difficult. Doesn't mean that because a closed source version already exists that it's not an endeavor worth pursuing. I personally would love for there to be a quality open source DAW comparable to the commercial ones (if I were wealthy it'd definitely be something I'd bankroll).