Hello from Polkadotters,
you know what? That seems a good idea to measure the utility for parachains and the price seems to be quite reasonable as well. I checked polkadot-weigher.com and it looks pretty useful. You have our support.
On the other hand...the data shows that the parachains are still not used a lot, some got results even under 1%, which hopefully will change in the future.
PS. I know it's just a tip, but price breakdown would help others to decide with their vote.