If you ship to the USA and include a shipping cost for shipping to the USA, yes you get the same visibility on dotCOM and dotCA.
The advantage for using dotCA is actually different.
With dotCOM us furriners are forced to use Fixed Price shipping. This is not much of a problem for international/US sales, since most of those will fit into a very few rates, but if your items can't ship LetterMail within Canada, you have to deal with regional rate shipping.
It costs me about $5 to ship from BC to BC or AB, but about $12 to ship anywhere else in Canada, when I sell a paperback that is more than 3 cm thick which must travel parcel post.
(While I think of it, use metric for shipping. Canada Post went metric in 1974 and using anything else leads to guesstimates and errors)
So if you are going to be sending parcels, use Canada Post and dotCA.
You can also at the moment choose to list in US or Canadian dollars on dotCA.
Currently eBay is encouraging us to switch to CDN (I haven't) and there is some thought/trepidation that we may soon only be allowed to list in CDN.
Remember that if you do list in CDN, your US customers shopping on dotCOM will see your prices in USD.
At the moment if I were to list in CDN, my $9.99 asking price would show as $7.50 on dotCOM. And my $9.99USD listings show as $13.50CDN on dotCA.
You will also see a lot of encouragement to use Free Shipping. It's not for everyone, but if you understand that Free Shipping really means you have included the shipping cost in the asking price, and can accept that without micro-managing it, buyers really do love it.
Finally (yes, I do occasionally shut up), when you make your listing, take a look at it as a guest on a mobile device. Apparently more than half of transactions use a phone at some point, and phone listings look vastly different from desktop views.
Welcome back and best wishes!
