I have to agree with Bill and Michel. I prefer instructors (and even
club members) with xc experience (or intention to go xc) because that's
where you have to show your best. I believe xc is an ultimate soaring
exam. You can climb from 150-200m locally but can you repeat it 100km
away under stress of outlanding? Can you afford to make any mistake
(yawing for a while, choose wrong path or speed) when try to make a l/d
max final glide?
You always learn something new and feel as a student again. Hanging
around the airport could be boring and doesn't attract new members. We
shouldn't be lazy to settle down and just telling the 10-20 year old
stories... We should go out again and again and collect new experiences
(and share it at the airport's pub of course. XC experience valuable
for the soaring community only if you share it.
I don't say that instructors without xc experience can't do basic
training. I just think basic training is not too much, training is
really done if the student made the first 300k... How do you support
your student if you haven't done what she/he is about to try?

/Jancsika (a beginner xc pilot, maybe instructor from next spring)