Here's a new spin on in-store events: retail entertainment. Adrenalina is the self-proclaimed "Extreme Store" that's taking shopping to new levels. Their indoor Flowrider lets customers ride a perpetual wave, for a fee, and then feast on all the skate-rat goods the store has to offer. I love that they sell ride packages (monthly, yearly) to keep people coming back. To add to the experience even more, stores have "intimate lounge areas with music and video stations." Who needs to leave?