To add my 2p.. I can be quite an eBay fiend, but tend to go for cheap plants, where postage charges aren't a rip-off. I'd also rather buy 20 plugs of a bedding plant for £2, than buy 100 of the things for a tenner. I wouldn't want a tenner's worth of petunias. I'm more likely to buy plug plants of things that are annoying to sow as they have tiny seeds. Veg/fruit-wise, I'd buy unusual varieties of raspberries/etc, and I'd love to be able to source the more exotic veg plants (especially the South American ones - things like oca, etc.)