People seem to forget that Altberg are a small business with (as I understand) just seven employees making these boots. It's not a huge factory, they're relatively modest premises. Due to a hard earned reputation for making one of the best quality boots on the planet, demand is always high. Many boots are custom made, so it's no surprise that there are lead in times if wanting some. They are also available from a few outlets in standard sizes.
I waited 4 months for mine and it was worthwhile. I've seen a lot of bikers who fail to regularly apply Ledergris to their Altberg boots or maintain them, then moan that they wont last or develop issues. (One gy I know never cleaned them from purchase, nor treated them, yet did big mileages....needless to say a few years later they looked a little careworn!). The leather will deteriorate over time if not properly maintained. Have never ever had an issue with my three pairs as I look after them but I fully expect that with enough miles on them, they'll wear out like any footwear. I consider boots, just like riding gear, to be replaceable items and whilst I don't expect them to last forever, two of my three pairs are now over ten years old and still going strong. That for me is a good reason to buy Altbergs as no other bike boot has lasted me as long.
My only gripe with the Roadsters which I am now using, is that the calf fit is a little too generous plus the side zips are all too easy to catch on the lining if you're not careful. Other than that, they're brilliant boots. Never yet let water in, are warm in winter and breathe well in summer. Mine are now fully broken in and feel as comfy as a pair of slippers.