I have just over 20 loose leaf teas...I counted 22 but I might have missed some of the older ones. And all of them are open excepting a 50g package of sakura sencha...but I do have an open package of the same tea.
I didn´t count tisanes or teabags which would have inflated the number quite a bit.
Not all of the teas I am actively drinking...there´s a couple which I don´t think I will ever drink and I should get past my packrat tendencies and dump in the garden...Then there´s some flavoured teas (lots of earl greys) which while drinkable I´m never in the mood for anymore.
The number would have been quite a bit higher last year but I gave some to my gf and used up most of the good teas I wasn´t intentionally aging...I was feeling like I had too much tea sitting around. Then I got into sencha so I am intentionally keeping the number low so I can use it up before it gets stale.