That’s indeed the case, John. Very few 7mm suppliers have a shopping cart system online. The website is often a basic one and essentially an electronic catalogue. Many of these businesses operate on a very narrow profit margin and are cottage industries. Many of the suppliers have other jobs and basically offer their modelling business as a useful service to fellow modellers. This business model works much better at scale specific trade shows, which are a scratchbuilders dream - a huge hall full of useful bits you can discuss with the trader in person. Quite how it will work in future is unclear. Unless you have an all singing and dancing website like Laurie Griffin, online sales of,say, tiny brass fittings in small volumes is not easy.