Your right nothing I have ever grown was even close to what you get in the store. homegrown is always much better. I think most of it is they pick well before ripe to get it shipped, also I think they may also grow varieties which produce more or more resistant to bugs or watering, that is just a guess ?
I think I would be scared of a tiller like that ! 
"Life should NOT be a journey to the grave with the intention of arriving
safely in an attractive and well preserved body, but rather to skid in sideways,
Champagne in one hand - strawberries with whipped cream in the other hand, body
thoroughly used up, totally worn out and screaming WOO HOO - What a Ride!"