Getting into breeding for first time

[OneStepAhead]

I'm looking to try my hand at crossing tomatoes. Can anyone explain what the advantage of is to trying to cross and then stabilize 2 open pollinated types, versus just making F1 Hybrids? It seems to me, many growers say hybrids are more vigorous, and you'd be able to maintain control over your seeds if one or both of the parents are a secret. Thank you