Why so many EUC shops have almost no stock of wheels? Trying to get my first one but the lack of choice/prospect of waiting months is not appealing. Is this normal or just because of the many disruptions in the world right now?

Correct, total disaster - result of lockdown legislation worldwide. Just browse the Woodland Group news page  95and see how everything has gone to pot. We have had basically nothing in since April time (we have had a couple of tiny airfreight parts come in) - keep in mind we pay prior to shipping....you can only but imagine the impact this has on the small business owner!