Yes, many Trekkers are sold in Israel.
E-scooters are very popular here in Israel, especially in Tel-Aviv but also in other "flat" cities.
Trekker used to be the most popular, but now I see more "Koopers" than "Trekkers" even though the Kooper is twice as expensive.
You can also see a few Chinese scooters (Xtreme etc.) and Go-peds (the I-Ped model) but the majority are Trekkers and Koopers.
I myself own a Trekker, and I would like to upgrade to a Kooper, but I spent so much time upgrading it that I am attached emotionally to it.
It is worth a lot more than what I will get for it if I sell it, so I'll wait until it dies.