Wallet.ws - Mid-high $xxx, possibly low $xxxx, like wallet web site, either a site that sells wallets, or a service like paypal
Client.ws - Low $xxx, more difficult because no immediate use sticks out in my mind,
Client.ws - mid $xxx+ it's the nicest of them both.
In general, I've noticed some of my clients (they're end users) buy .WS they like for $xxx-$xxxx without hesitation. It's the wholesale buyers that don't like the extension that much.
Wow, deja vu - I was looking at wallet.ws several weeks ago. Couldn't pull the trigger. I think I went with disease.ws or tablet.ws instead. Very nice name though.
I agree with the above posters. In the hands of an end-user or with some development, these .ws names could be mid-high $xxx, maybe low $x,xxx (with development). :imho: Congrats on the names.