Depends on how much you mind restoration/cleaning work for fountain pens. I've already got all the entry tier stuff covered, so buying new pens at MSRP would probably mean somewhere between 1-3 pens, depending on how fancy I'm looking to get. I already have an ultrasonic cleaner and plenty of repair supplies, so I'd be hitting up auctions, personally. Depending on what's in the lots and how many people notice the contents, 1000€ would probably get me somewhere between 200-400 pens. Probably another 200 or so if I get to count what I could buy with the proceeds of selling off the ones I'm not interested in.