Flakk wroteI did go to an event called Retro garage sale at Minus 1 in gemmayze but I was very disappointed. The retro games section is really overexpensive and most of the carts are fakes. But on the other hand the comics section was awesome, lots of retro stuff for good prices.
I am in London, I found a place that sells old stuff and found some Marvell comics magazines from the 80ies. They're cheap too (less than 2000LL each!) and in great condition. They're pretty thin though, the type that you would buy every week.
So anyway I should be coming to Beirut soon so feel free to request some.
PS: you can ask about other stuff too but I'm not sure I'll have the time to order stuff online.