Parts these days..
David Weaver
..I guess this is a hard thing to nail down as it seems like for some things (namely my favorite used to be cheapie ryobi cordless tools), you can find something like an 18v string trimmer and there are four different versions that look the same, as well as other versions that are junkier or with more features.
But, I like to make chisels. I have just learned to forge weld the bolsters using a cutting torch for heat (oxy mapp, a little one) When I put the torch down, I need to get a chisel on the anvil quickly so I lay the cutting torch at the front of the forge and its heat goes into the forge doing nothing harmful and then I get the next one and do the same. The old adage George W told me about forge welding is you heat the item and "you get two licks" as a blacksmith at CW said. No time for dawdling, get those two in, set the weld and move on.
My regular heat source for a small forge is a paint can forge with liner and I use two propane torches to heat it. Today, I laid the cutting torch in and accidentally nudged the propane torch (one of them) in further and the result was the cutting torch cutting a hole right through the tip (just typical bernzomatic type).
Here's the rub. The tips come on and off of the torch with threads, no problem, probably so that you can change them. You'd expect that bernzomatic might have tips because they get damaged easily (e.g., assume you're a plumber and you drop one of these - it lands on the brass tip and the tip is bent and doesn't work right again.
Price online for another TS4000 bernzomatic torch - $33
Price for a tip - anything from 21+shipping (that gets close to 33) or $31 on amazon for one spec'd to work.
$3 in canada for a compatible tip 
I don't quite follow how this is a $20-$30 part - the igniter isn't even in the tip, it's just a tiny stub of brass.
I do get the fact that the manufacturer doesn't have a great incentive to support a $33 product and is probably under constant pressure from department store corporate buyers to make things cheaper and cheaper, so they have to cut out background costs. It stinks, though. I bent the other one of the two. With the holes in the non-bent torch, it makes a flame that looks like a photo of a muzzle brake on a rifle - one out the front, two out of the sides.
No ability to get the correct part on a ryobi cordless pinner, either (one of the few things that ryobi doesn't make cheaply). Tried twice with parts diagrams and each time, the wrong part comes. I give up (P318 - a nifty little device - but one part breaks on it and it's $130 tool-only into the toilet). I could keep taking shots with the OEM parts supplier but will approach the cost of another one.
