I completely agree.
Lately I have been purchasing decants or offering decants of full bottles of items in my wardrobe - off of Basenotes of course
20-30ml is plenty for me based on my rotation (most bottles I will not finish in my lifetime) and I have a relatively tiny collection compared to many Basenoters.
Decants are more economical and make much more sense in my case, however the lure of some full bottles still calls to me (I make most of my full or almost full bottle purchases on Basenotes).
The new decant swap policy on Basenotes will be a welcome addition