I've done cheap seeds on low investment items like lettuice, flowers, etc that do not matter if they make it or not. But anything high investment, like tomato, beans, squashes, I spend the extra few bucks for seed I can trust. Our growing season is short and cool enough that getting a tomato plant that is anything but a cherry, or true ultra early/early season would mean no fruit. Heck, last year early girl did not give me ANY fruit despite planting inside 12 weeks early. Cherries barely produced anything! Not going to waste a whole season of plants, care, water and space for 75 cents. I tend to get some seed I can trust, and use that same packet for 2-3 years so it's not so bad.