There is no counter play/counter building in bot lane and thats no fun
The support is getting the same Sightstone and income item every game, coupled along with boots there really is very little swaying from a "same old, same old" bot lane support. The ADC is almost always rushing BF sword and even if they aren't their first 2-3 items are all the same differing very little from marksman to marksman. All in All the bot lane can be a boring melodramatic lane that lacks diversity (especially in itemizing).
I suggest you do that unholy thing you have been avoiding all this time... make AD+Armor items, and all kinds of them. and more AD+MR items too. Then I suggest making the income items much more like Doran's. Something that players get early then sell back later. It doesn't need to build into anything, just let it stack into something. having to pay gold to make more gold doesn't make enough sense to me.
What I am looking for is a more competitive lane like mid is. Now maybe you are trying to avoid that feeling on purpose but can we get those item options anyway?