Writing instruments are basically not suitable as an investment; only a few special editions hold or increase their value long-term, a price drop is not excluded, and the market is comparable to watches but more volatile. Collectors therefore advise buying primarily according to personal taste and not speculating on appreciation; a later value consideration only makes sense after decades. With limited editions it should be noted that nib exchange after some years can become difficult, because replacement nibs are not kept in stock indefinitely, which is why many collectors nevertheless use their special editions in everyday life. As an entry, classic standard models such as the 149 or 146 LeGrand are recommended; eBay offers from unknown dealers carry counterfeit risk, which can be avoided by buying from authorised dealers or established online shippers like scription.de. Complementary collector sources are penexchange.de and fountainpennetwork.com.