There's nothing on the market that compares for 10% of the price. There's only one other FF compact on the market. And it's a 35mm f2 with terrible battery life and poorly implemented fly by wire manual focus and no evf or ovf.
I'm with you that the RF is definitely an integral part of the Leica legacy, but legacy's come from the past, and we don't live in the past. AF on a premium Leica product is a huge step forward for them. They used to be a working photographer's camera, and now, they're merely a niche item for the rich and beautiful or the old and nostalgic. I'm assuming they'd like to change that.
As for a "sound investment" I don't think many people buy cameras as sound investments. Especially not digital ones. That would be most unwise. I think if someone shoots 28mm, wants full frame, a fast lens, AF, and great IQ in a small package that this is a great candidate for them seeing as it's the singular candidate. 28 is my favorite focal length. I'd love to own this camera. Especially if Leica comes out with a 50mm version to pair it with.
I'm a Leica shooter. I have a few lenses. But none of them are brand new ASPH lenses, most are 40+ years old and would not do well on an overly demanding 24 megapixel sensor. The closest lens to this 28mm f1.7 'lux is the $3900 Summicron f2, which still leaves me without a body. I'd be 10k in the hole if I wanted the M240(which I would seeing as the M9 sensors are defective).
I'm totally with you, the M6 is my favorite camera. I take it everywhere with me. My D750 is simply too big and too heavy. The M6 is phenomenal. But film is expensive. I'm going on a year long trip next summer, in maybe 2 or 3 months I'd shoot enough film to buy one of these guys, just in film + processing, not to mention logistics of getting the film out of the countries I'll be in and back to my country of residence. If it were feasible to do it all the time I would, but I can't. I'm not that rich. I sincerely wish I was.
I didn't take it personally but I'm disheartened that people are reacting poorly to Leica finally trying to change with the times. To get back on the horse so to speak. The Q is something to get excited about, and certainly not boring. It probably has a lot to do with the demographic that shoots Leicas these days, but as someone who sees the necessity of digital, and doesn't like the idea of $8,000 bodies, this gives me a lot of hope for one of photography's best camera makers.