Amen. I grow for personal too but I typically have WAY more than I can smoke before the next harvest. I don't try to make much though. I sell to fmily and very very very close friends only. I pretty much give my dro away at 200 an oz. I'm not a drug dealer really, just interested in sharing the finest shit with those I love. The money is just for my effort. I've seen good dro go for 600 an Oz. though. I'd say choose a stain with GREAT weed not yeilds. Everyone will pay more for better shit if they can. Try any of the white strains at Nirvana Seeds. VERY POTENT shit. I had some White Rhino of a friend and it was AWESOME!!! Taste great, I WAS FUCKING STONED!!! You give someone green like that and they'll be back. So, yeah, just sell great green at high prices if money is your goal. High yeilding plants don't always command high prices.
Big bud is good for yeilds, but not anything great as far as potency, taste good though. I'd suggest just staying with your Deisel and savy the seed money. If you don't already have a co2 system, spend the seed money on that. That will absolutley increase, yeild, potency, taste, and accelerate growth. Or, if your set on something new, try out some white stains.
Hope I helped somewhat. Good luck, and stay safe everybody.
-The Dude