hm, OK. in that case, I'll give Apple the benefit of the doubt and say that if 10.1 and 10.7 could possibly run on the same computer (since 10.1 was PPC-only, and 10.6 and 10.7 are x86-only), they'd let you upgrade directly for $30. thanks for the clarification. :)

(though, I'd still argue, an extra $70 per decade is not exactly breaking the bank.)