Au contraire, Grasshopper. You have not missed out, not yet! No fewer than four dealers, who are also members of this forum, still have CT Barlows (aka Charlows) in stock. The spey bladed models are becoming quite rare in the wild, but the spear points may also be on their way out.
The Time Lord (Chief Barlow Engineer C. Campagna aka Waynorth) has clearly indicated that one-armed man or razor Barlows are next, but will be followed by other patterns. Charlie likes to come up with new handle materials (like 3rd cut stag) but has suggested that he will try to offer jigged bone Charlows in various blade configurations over the next year.
If you can't locate the dealers with Charlows in stock, send me a PM or email.
And read the thread "What Makes a Good, Traditional Barlow," from the beginning. It is a great summertime read for those of us who love Barlows.