Hey, thanks for the reply. Yeah figured that this was a matter of personal choice more than anything.
Sadly counting on future patches will probably not help. Sure thing with 1.22 old recipes will be gone, but we can expect way more items to come from 2.0 and onward and the list will only become longer and longer with every patch release (let's say level cap is risen to 60, tons of 51-60 recipes will be added) etc.
Eventually in few years time, this "lag" will become unbearable. Wouldn't it be better to enable users to filter things before the full list is being displayed (most of crafters only need to display recipe within a ~10 level range).