As for abandoning the hobby, Empty, although I have quite a few vintage nibs, I've happily used modern nibs only for quite a while, so there's no reason to think about leaving the hobby. You can still get beautiful results with modern nibs. Vintage nibs are definitely going up, with even previously relatively unpopular nibs like the Esterbrook 354s and 355s, which were going for about $6 a gross a few years back now going for $1 each. I guess people are seeing nibs being advertised for $20 and more apiece and figure that, even at several hundred dollars a gross, they'll still make a profit. But I wonder how many people really buy nibs at more than $5 each, let alone $30. One possible upside is that the higher the values go the more the modern manufacturers will realise that there is a good market for quality nibs.
A hobby built on vintage or out of production consumable cannot be sustained.
I just started again in the calligraphy and finding the nibs are really bad. I briefly played with calligraphy (for few weeks) in 2009 and bought a gross of modern 303 and most of them seem OK. At that time also purchased several dozen of EF Principal and every single of those nibs is perfect. Now we read about extensive problems with EF Principals. Just to complement that gross or 303, I bought another gross (144 nibs) about a month ago. Out of those 144 nibs, only about 42 (yes forty two) nibs seemed OK. The rest of 102 nibs looked like they were cut oblique, uneven tines and various other defects. Even of those 42 nibs that appeared ok, none is as good as the 2009 batch and that is saying something because 2009 batch quality is not that great to start with. The vendor I purchased from was more than accommodating but that is the situation with the nibs.
During that brief 2009 foray into calligraphy I bought tons of vintage nibs. I have more than enough supply of vintage nibs to last me couple of lifetimes (Spencerian 1, 356, 357, 358, Vintage Hunt 56, etc, etc waiting since 2009 to be used) at a use rate of couple of nibs a week and all of them are a pleasure to use. Likely I will sell them or do a few giveaways here and there. In addition to nibs I am left with, I used to have around 150 boxes of Esterbrook assorted Arts and drafting nibs which I have sold or gave away, save 5 boxes for myself.
However I just don't like to use vintage nibs if that makes sense.
Nikko and Zebra guys are producing nice nibs for their market at good price. It is hard to know why 303 and EF Principal people are allowing defective items to enter the market. Or why they cannot produce working items at the current price point because Nikko and Zebra are doing it.
Just like Empty Clouds, I feel like leaving the hobby or moving to the quills. For me, it is not a matter of not having vintage nibs because I have lot of them. It a matter of not having a reliable and constant supply of modern nibs.
Tanvir