jrt: You know, problem is that even those plastic toy class tables I mentioned above aren't that bad . . . that one couldn't enjoy good records with these thingies or not find the one or other positive attribute to say about these. Pretty much the same goes for the 415-2 and 435-1, just that these Duals have a less plasticky appearance . . .
I agree, and think it's one more reason why the CS 415-2 could be a good choice. The OP has stressed that simplicity/convenience is more important than sound quality. For a hi-fi enthusiast, not being able to tweak tonearm settings and being pretty much stuck with the stock cartridge might be anathema, but for someone who just wants to press the start lever and hear a record play, such refinements might be more a hindrance than a help.
Most of these plastic tables use an AT3600 family cart just like the Duals do (the DMS251S also is just a rebadged AT3600 family model). So I was hardly surprised to find these actually sounding pretty simiar.
One of the things that attracted me to the Denon DP-300F was the removable headshell and easy interchange of cartridges, but after buying an extra headshell and trying some other budget cartridges with the Denon (M97xE, Grado Green1, and AT95E), I found that I preferred the stock cartridge, which is also an AT3600 variant. For that matter, I loved the sound I got from an AT CN5625AL (another 3600 variant) on my LP12/Ittok rig, so maybe I just really like that cartridge family.
I can't really comment on using that Thorens for 78 rpm use, 'cause I've got no personal experience with 78 rpm records. However, I thought the fans of these would rather prefer a table with pitch control for the purpose and possibly also a phono stage with slightly different equalisation curves to choose from. It that's the case, then I wouldn't expect the Thorens to be really ideal.
I'm old enough to remember when most people still had 78 rpm capable record players, and even bought 78's when I was a kid. I don't recall anyone having or worrying about pitch control or different equalization curves; we just turned the knob or lever to the 78 speed position, flipped over to the 78 stylus, and played the record. Unless you're hiring yourself out as a professional for archival or transcription services, I don't think the lack of such features will seriously impact one's enjoyment of the records. I no longer collect 78's, and gave away most of that collection and associated equipment years ago, but I still have a small collection of the ones that I bought as a kid or that were owned by parents and grandparents. Nothing special about them, but I'd like to be able to listen to them once in a while.
. . . many of the DIN standard limits for hifi rather represent what an average consumer would deem pretty good quality than what a hifi fan or audiophile would deem actual hifi quality.
No argument there. And while it's understandable that participants in a forum such as this aspire to loftier standards, and warn off people who seem headed in the wrong direction, there's nothing wrong with people enjoying what seems to them "pretty good quality." The AT-LP60 is one of those sub-$100 plastic turntables, and people love them (Amazon lists 168 reviews with a 4.4 stars out of 5 average rating). The Dual CS 415-2 offers a significantly better wow and flutter specification along with a more pleasing, "less plasticky" look. Maybe that's enough to make it a good value for someone wanting a brand new, fully automatic turntable to play records on, one for whom audiophile considerations are unimportant ("she is not concerned with Audiophile quality or such. Just wants to play her LP's").
I'm probably biased because a couple of decades ago I worked part-time at a small audio shop, but I can't help but stand by the recommendation of "the local stereo guy" the OP mentioned at the top of this thread, a guy who likely knows the OP's needs in greater detail than any of us. Plus, I haven't been able to come up with a better alternative that meets the criteria of being new, fully automatic, and selling for $300 or less in the Canadian market.