I'm looking to buy bulk EOD option data that includes the closing bid/ask. I'm trying to decide between Stricknet.com (597 for 2003+) vs historicaloptiondata.com (1428 for 2002+). The other sources I've found are much more expensive. Stricknet is significantly cheaper, but historicaloptiondata is better known. I'm looking for feedback from Stricknet and Historicaloptiondata users. Is their data complete, or are there missing dates and symbols? Any problems with accuracy? Are there other issues I should be aware of?