I haven't had a thunder storm here since 2005. It is frustrating, but part of the reason that it seems to be the east that get it, is just purely down to being closer to the continent, that's also a reason for a lot of other types of weather too. I'm sure there's people int he east as well though, that have not seen much storm activity. Storms are sparse in nature, it's not like a weather system that covers three countries at a time.
It's just unfortunate, things will probably change again at some point though.