I still remenber when I started 8 years ago with only a Merkur HD, an 8 € badger brush from Muhle (really bad), Gillette Bleu blades (universally availlable in France) bought in a supermarket and a tube of white Proraso. My goal was to save money and to shave in a cool manner.
At that time I managed to only buy blades sample packs from the US and a 2nd hand Slim razor from Ebay. It lasted 4 years like that with just renewing the white Proraso (still the paraben version
) after 2 years. In addition, it must be said that in 2008, the offer of artisan soaps was scarce, and most of the availlable razors were vintage, Muhle/EJ, Parker and Merkur.
Later, while moving house, I lost the head of my Merkur HD, thus I had to reach the Merkur customer service. In the meantime, I had to shave so I join a French forum (I was registered with B&B, albeit only lurking), it revives the urge to try new things (soaps, razors, brush) and I renewed all my hardware and software ...
That said, since then I strive not to hoard shaving material ; in order to do so, I try to limit my budget to less than 30 €/year, buying mostly cheapy stuffs (creams, soaps, AS, razors), allowing myself one artisan soap a year and exceptionnally a good piece (e.g. Digress).
In my opinion, the urge to buy is just a phase, like in any new passion once the novelty gone, the urge to buy will settle.