WTF? Tell me what you like

We've been using a really cheap (and in my opinion crappy) Kraft (ew!) Parmesan. I tried telling Josh that we can do better, but my spendthrifty pleas sound are so whiny and frequent that they often go unheeded. Recently my husband found out that his parents have been consuming $13/lb Parmesan cheese, so he got very upset. It's not what you think though. Because his parents are generally thrifty people (the apple does not fall far from the tree), if they are willing to splurge on a product, then it must be good. He felt cheated. He learned to get cheap cheese from them, if they've moved on, why didn't they clue him in? Thinking about how many times they've stayed at our house and ate the crappy cheese without sharing their opinions on how things should be done makes my husband fume.
There're plenty more stories like this, the basic gist is that someone's figured out something good or likes a certain product AND they know what you're using/eating is crappy but they keep mum. I used to think my husband sounded like a pretty whiny nerd to get mad over this, but then it happened to me.

I've been complaining for ages about my crappy teeth. Anyone who's listened to me while using/owning an electric toothbrush makes me angry. Why didn't you say anything?! Now that I have one, I feel obligated to tell others who would benefit from knowing this information.

I'm totally incensed that people don't do enough sharing. Everyone knows word of mouth is powerful testimonial so why are people so loath to doing it? Is politeness the main reason to stay quiet? Because privately thinking someone's an idiot when you can help change the situation sounds pretty rude to me. I'm not asking you to spew non-sequiturs left and right, inundating all conversations with recommendations but if the subject does come up, you happen to know something about it, connect the dots, do some good for the world, goddammit and tell me what you know. You can try to balance "to each his own" with "share your knowledge", but when you are hanging out with me, you can always err on the side of letting it all hang out - please!
Josh and I are like missionaries for all the things we like. Here's a list of some stuff we think are great, please add your words of wisdom here. Quickly, for Christ's sake, you've made me wait for too long!
1. Eurofoam mattress
2. Pulltap corkscrews
3. Down pillows
4. Ralph Lauren towels from Horchow
5. Lands end rashguards for kids
6. Menstrual cups (this one's just from lil 'ol me)
7. GPS unit
8. Mach 3 razor blades
9. Cheap knives that are frequently sharpened
10. Cuisinart multiclad as an economical substitute to All Clad
11. San Marzano tomatoes