I would certainly acknowledge that the self-serve model in itself, which was introduced some 30 to 40 years ago, has changed the operating model, if you like, of retail sites. That has been driven to a significant extent by the fact that gasoline margins have reduced quite significantly over time. So in fact, while yes, there's a savings in terms of not having staff there, there are technology costs for sure and equipment rental costs, etc. There's also the loss of revenue from people not coming into the store. Frankly, you make more money on a can of Coke than you do on a litre of fuel any day. So there's that offset as well.
Retailers would rather have people come into their store, but frankly consumers are very much focused on speed of transaction. That's why, as I mentioned, we certainly acknowledge that. Meeting customer needs on that front is important. There are investments in technology and equipment rentals, etc., from running what's called a CRM, a cash register, if you like, in the dispenser, and technology costs have been very significant for independent marketers and I'm sure for all gasoline marketers. It's a very complex system out on the pumping island.