Viewers view. Watchers watch.
Buyers buy.
Most of my items are Fixed Price* and if someone wants it they can buy it immediately.
There also seems to be a lag between viewing and Views, because some sellers have reported having sales with not Views at all. Which could be explained by a lag.
However, an Auction seller may find Watches interesting, since last second bidders are common in Auctions. And an Offer to Watchers of an Unsold Auction might be successful, because people do miss deadlines.
*Collectors in my category are pretty focussed, so Immediate Payment Required is not necessary. YMMV.