I don't know about massive. I regularly hear complaints in the German NG that they can't get this, that and the other thing. Digikey almost always has it but they have to pay customs processing fees. Farnell often brings in stock from Newark and then they charge a fee on top as well.
Last example: LM3478, a pretty common PWM chip. Farnell has no stock except for a US transfer for an extra GBP 15.95. Pretty steep when you just need a few. So, now you have to scoot over to the next distributor. If you need the RoHS version you can get it a RS. If you need non-RoHS for med gear and stuff you're outta luck. No stock. In Germany they couldn't get it at all last week. This is like Tesco running out of bananas.