Like I originally expressed, play for your own expectations and enjoyment.Have you ever played on a Diamond with Pro-Cut 4.5" pockets? Especially with cloth broken in? If not, it is about 5 times harder than the tables you just described. No lie. Valley tables actually have very small pockets at the mouth, I think actually less than 4.5". But the shelf is super short, and the pocket facing angle is much different than a diamond. It is almost obtuse, where as Diamond (and Brunswick commercial tables) are acute. These factors make the tables on bar box Valley night and day easier than a Diamond.
On commercial tables, such as Diamond 7' or 9', or Brunswick GC (not Brunswick home tables), even if you go with a 5" pocket, it will play way, way tougher than a Valley with much smaller pockets, due to the slate shelf and angles.
Strongly recommend if you go Diamond to get a League Cut Pocket, which is 4.75", unless you know for sure what its like to play on a Diamond.
It’s exactly why I wouldn’t get a Diamond table. I really don’t like the rails.
There are so many other options out there for that price range new or used.
Practice helps to improve your stroke regardless of the table’s pocket size.