I have been cycling/commuting for about a year now on a junky cheap trek hybrid. I will soon be having my lbs build up a do-all road bike on a cross-check frame because I really really like the versatility of the frame and the almost infinite things you can do with it. My wife has gotten into cycling with me in recent weeks and I've finally interested her in a road geometry bicycle. The problem is that she's become smitten with a Giant Avail 1 race bike and is very adamant about purchasing that bike. Currently she claims she has no need for hauling extra gear or anything like that, and enjoys how light and agile the frame is. The bike admittedly is very light and she's probably going to smoke me after i finish dorking out the cross-check with racks/fenders/etc. My concern is that she's going to get the bike and a few months down the road, her thoughts will change on what functions her bike should perform, and the avail will be inadequate for these additional functions.
Should I just leave her alone and get the race bike since she likes it so much and claims to feel comfortable riding it? Or should I slow down this process and try get her butt in some utility road bike saddles to feel out the differences? FYI she has absolutely zero intention of ever racing (her words) and maybe would be interested in doing charity rides or centuries in the future. Any thoughts from others who have successfully "talked their wives off the ledge"?
EDIT: After lots of feedback from more seasoned married men and a very good point that the Avail isn't technically a race bike, but more specifically an endurance bike, I've decided to back off and get her on the bike she wants. Thanks so much for all the colorful input!