So, kind of a query "factory". Sounds good to me. Would you feel confident using an "optimal" query plan that's generated on sub-optimal hardware? You'd have to account for operators like parallelism and spooling which might be affected by hardware, if so.
Also, I'm assuming that the query you run 10,000x per day is run in parallel and the time savings is an aggregate as there are only 86,400s in one day (10s X 10,000 = 100,000s) :-)
James Stover, McDBA