I made my Druid and Cleric both Halflings
specifically because of the racial Hide/Sneak (and of course the +5% XP bonus
[You must be logged in to view images. Log in or Register.]). On paper all that seemed to give Halflings the best racial benefits for both classes. However, in practice I almost never use either skill on either character.
Sneak I probably
could use to vendor in certain places ... but I never think to do so; I just port somewhere I can sell on my Druid, or wait and sell later on my Cleric. And of course my Druid can just use Invis, and my Cleric can use Invis items. Maybe if I played a Rogue to a decent level I'd be more used to it, and so take advantage of it more? But for me Sneak wound up never getting used.
Hide however I did use ... very rarely. It's perfect for when you are are soloing, and don't want to have to find an "AFK safe spot". You can just Hide, /con something to make sure it worked, and then go AFK peacefully.