2 very different products sharing same generic keyword

how do you use same KW for both?

[TerriGW]

I have "paper widget things" and "plastic widget things" that both share the KW "widget things". If I have 2 Campaigns (or 2 Ad Groups for that matter) and put "widget things" as a KW for both, will AW automatically pick the ad that gets the most clicks? Paper always outsells the plastic, but the plastic are newer, cheaper and stronger and I need to push the plastic. But paper is also very profitable. Unfortunately when people search for "widget things" either of these major products could work for them. Solutions? Ideas?

Thanks!

[marek]

Create three ad groups and three landing pages. One for the paper widgets, one for the plastic widgets and the last one for the widgets only. On the landing page about the generic widgets describe the differences between the paper ones and the plastic ones and let people choose what they like more.