They are not, they are 40 quid.
The only reason I went for A319s over A23 was due to being extremely tight and wanting to use my existing spokes and hubs from a fairly new wheelset. The A319 were exactly the same ERD and the A23 wasn't. Presumably the A319 would also be stronger/take more abuse but that is not much of a concern as I never broke Open Pros when I used them.
They are not, they are 40 quid.
The only reason I went for A319s over A23 was due to being extremely tight and wanting to use my existing spokes and hubs from a fairly new wheelset. The A319 were exactly the same ERD and the A23 wasn't. Presumably the A319 would also be stronger/take more abuse but that is not much of a concern as I never broke Open Pros when I used them.