I've had to wear glasses since I was a child and I've always felt ugly and lacking in confidence when I was wearing them. I've never felt that I suit them. Then, after decades of glasses wearing I found some frames that I finally felt really suited me and I feel so much better wearing them! I bought a pair and a spare pair, both with my prescription lenses, when I found them but I am now thinking of buying another pair or maybe several other pairs. I worry that I won't find anything similar again when they go out of stock. So I asked my optician if I could just buy a third pair of frames without the lenses (or with the plastic lenses they have for the sales displays) but he said that it didn't really work like that and they wouldn't keep their shape and that I really needed to buy them with the lenses now. But I feel that as they are for the future my prescription may well likely have changed by the time I come to wearing them so it seems like a waste of money. Has anyone ever heard of this? My optician is lovely and I don't think he is trying to swindle me or anything. It just seems odd and I don't really understand it.