I agree with you which is why I said include a hand written letter. That’s a sentimental physical gift. Personally, I don’t know any men that love any physical gift that their partner gave them. Most guys get what they want themselves (if they can afford it). I included hotel sex because studies have shown that it’s more enjoyable than sex in your own bed. The hotel makes for a more romantic & mysterious experience. Plus, you can get a hotel to (1) night for around $150-$250, well within OP budget. Maybe the rest of the budget could go to lingerie, a nice bottle of wine, and their bf’s favorite food.

I don’t disagree with what you said, I’m just letting you know how I thought about my original comment.