I have an Excalibur dehydrator. It's mid/high end and costs around $250 but it's the Martha Stewart standard for legit dehydrating. The next step up is going into commercial grade. I got it on a black Friday Amazon sale a few years back, and I have no complaints with it at all.
I also have a foodsaver game&field vacuum sealer, and it's alright. The biggest issue I have is the cheap bags I bought for it don't seal 100%, and the fix is double sealing, which takes time. I bought so many rolls of these cheap bags, I haven't bothered buying better bags, and likely won't until I go through them all.
Reviews for the dehydrator I have are okay, and it's a middle tier brand/product. I paid like $100 for it. One of the cool things it does is you can get an attachment for Mason jars, and vacuum seal things like rice, spices, or other grains in a reusable jar.
I dgaf how homosexual it is. Food preservation is a good skill to have. The next step after you get these two is to get a pressure canner.
Best combos I've made with dehydrator+vacuum sealer are
>apple slices with cinnamon sprinkled before the dehydration
>beef jerky (super easy and goes great in ramen for a cheap backpacking meal)
>Cooked rice dishes for instant rice meals
>garlic cloves (which I ground up once dehydrated and use for seasoning)
>Onions (these taste so good by themselves, it's like a chip almost. Goes great on burgers, salads, or in a soup like top ramen with your dehydrated jerky)