Again my view is if one is looking at marketability, a kitchen table is virtually never a negative but it's absence is potentially, so I personally would be very cautious about doing things which limit my resale market. We all know the kitchen is the most important room for most people so potentially this is a deal maker/breaker for future sales.
I live in Scarborough, in the Bluffs.
When I was looking for a place, space on the main floor dedicated to a true in-kitchen table was a mild negative for me. A dedicated separated dining room was also a big negative for me. One of the problems is that in-kitchen dining areas often means a more traditional, not modern, design, and space wasted. I, and esp. a lot of downtowner ex-pats, really would rather the space utilized better, for example as a bigger kitchen. In places like Toronto, modern kitchens are quite popular if done tastefully and functionally, and I think tastes have changed dramatically since even 15 years ago. So, basically, anywhere where you're likely to have buyers under the age of 45 and somewhat modern tastes (like most places in Toronto), then you are likely good to go. Now, if you're stuck in old-codger territory, then perhaps not so much.
BTW, I was at Ikea today looking for some furniture, and had a quick look through some of their kitchen displays. I noticed one very popular theme there wasn't in-kitchen eating areas, but again, near-kitchen dining tables, such as this:
To put it another way, I consider a good design for a kitchen and dining area is to have a single dining area, with that dining area almost as an extension of a large and open kitchen. Indeed, the last major reno I saw from a neighbour was a small traditional bungalow... until I walked inside. They ripped apart the entire front area, and made an open concept kitchen with an adjacent giant room. One corner of that room next to the kitchen serves as the dining area, and the rest of the room serves as a living room. Very nice. The only problem is that one of the walls was a load-bearing wall and it would have cost a small fortune to re-architect the design to remove all the load-bearing pillars. So, they have a single pillar in the middle of that giant room going from the basement to the roof which isn't ideal, but that did save them a ton of cost for the re-design and it still looks great.
For the record, my current setup isn't actually like this. My setup is kitchen (at front of house) with an open breakfast bar separating the kitchen from the giant room. The dining area is in that giant room at the other end of the room (facing the backyard).
Kitchen at the right, dining area at the left:
The reason we put the dining area away from the kitchen is because it overlooks the backyard, so we can see the outside landscaped view. We have our breakfasts and quick meals at the breakfast bar. Ideally that pillar beside the breakfast bar wouldn't be there if I had my choice, but that's where the heating ducts and support pillar run so we had to leave it there.
The bonus here though is that if we wanted to change things up we could do that very easily. We could put the dining area right next to the breakfast bar, and shift the focus of the living room closer to the backyard windows. A more extensive change would be for us to remove the breakfast bar completely so we could walk straight out of the kitchen right to an adjacent dining table, but we didn't do that because of the extra cost and the loss of cupboard space.
BTW, as you can see, our choice of furniture here isn't actually modern. It's more country-ish, yet the modern no-in-kitchen-table and no-separate-dining-room design choice still applies.
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What I am really saying here is you still
do need a dining area that can be used as a dedicated and nicely decorated area for entertaining, but that can functionally be an extension off the kitchen. And if it's an extension off the kitchen then the in-kitchen eating space becomes irrelevant.