Allowing retainers to sell more

I'm sure other players who are crafters would agree that it would be nicer if retainers had more than 20 slots of space to sell items. In my opinion, I feel retainers should at least have 35-45 slots available.

I only say this because sometimes it's a hassle when your retainers' inventory is already full, as well as the space in your own inventory or your company chest. Especially with the marketplace being slow sometimes, it's a pain to find the space to hold onto items until your retainer has an open space to sell another item.

you can always purchase the optional service for the extra 2 retainers (total of 4 retainers)

If my 4 retainers are full of things to sell, I use the company chest to transfer items and use one of the 4 retainers I have on my alt. You can have up to 8 characters off one sub, iirc. That's 640 possible slots to sell things if you really needed extra selling space. Pain in the ass, sure. But most people probably don't need the default 40 even.