[okmokmz]

I don't think it necessarily matters that it's glassware, but in generally I'd always rather work with a local master who I can talk to face to face with years of experience in the industry, rather than ordering from a company in China with little input, longer wait times, and (most likely) lower quality due to less experienced workers. Of course these are two extremes, and it's possible that there are other local professionals that can bridge the cap, but the advantages of having an onsite master still seem fairly obvious