Hussar
Legend
Great point. As was probably mentioned before...the smaller 5e modules are currently released via the Adventure League. The only way to experience those is to show up at a local gaming store or find a DM online that supports them. Maybe they could sell a pdf with all those adventures after the League has moved on to the next season or adventure series. Folks could use a print by demand service or something if they wanted a hardback.
But, you're missing the point for Adventurers League. It's to SUPPORT the LGS. That's 100% the point behind AL play. If you want the modules, they don't want your money, they want your time. If you give up about four hours of your free time, you get access to the entire season's library of modules. That's what it costs. AL play is not there to make WotC money. It's there to support the LGS, which in turn, makes money for WotC. Selling the modules would defeat the purpose of those modules in the first place.
Never minding the huge expense it would be to get those modules to the standards of a WotC "for sale" product. The AL modules are barely formatted, have no art and hand drawn maps. There isn't a chance that WotC would sell them in this form. Which means they'd have to hire artists for every module, cartographers, someone to do the layout, line editors, the whole nine yards. All for a ten page module.
Because, you have to realise WotC trades pretty heavily on producing some of the highest quality books for RPG's. They're the reason that we get full color, hardback RPG books. Going back and banging out "Published in my Basement" level products would hurt them far, far more than just giving them away at the cost of one afternoon every six months or so.