Do you really think so? For me, the Japanese "luxury" lines just don't measure up. I'd much rather drive my Mercedes. I guess it all depends on what you consider luxury.
My son recently bought our daughter-in-law a '14 Acura MDX. We recently spent a week with them, and got to go on a road trip to Patti's (for those familiar with Western Kentucky) in it. It didn't appeal to me. I would much rather ride in my '14 E350.
His MDX is more heavily optioned out with gadgets, such as built in DVD players for the kids in the back. And more modern looking IP features. But all of it look like they are the very same window and door controls as what is in a Honda Pilot. Same with most of the IP. None of it made me feel like I was in a luxury car. There was nothing that you don't get in a Kia. Or a Ford.
The switches all looked cheap compared to my E350. None of the beautiful interior design or colors that my E350 has. The seats in the MDX were a nice leather. But they didn't have the same luxury look that my E350 has.
I didn't buy either of my Mercedes cars for prestige. I bought them because I love the engineering, and the beauty. But for me at least, I've never thought of any of the Japanese premium cars as having any prestige. They just don't have any style.
Is my Mercedes as reliable as a Toyota? Probably not. But that's not what I bought it for. Because a Toyota has never appealed to me. I want a little excitement out of my cars. When I want a utility, and nothing more, I'll consider a Toyota.