Ok, burning... I keep my hand off

Thx for your reply Sonicviz. Fow now I just need some superficial binding (one ui element to another in the same prefab). So I think NGUI will fit my need for the moment.
In the futur I will need to create some deeper binding to connect the view to the view model without coupling my prefabs with additional components. But maybe NGUI will fit also. Wait and see... (any advice on it Arenmook ?)
On your other point, you are right it is a pain in the a** to have such abandonwares on the assets store. But I think this is the draw back of the mass effect.
Maybe a system like the github report with activity monitoring, issues counter, stars... could be a better solution to curate the asset store and avoid the paid-for-nothing sensation.
Thx folks.