+1 on binos. They’ve kept me happy because they fit in a backpack or carry-on luggage. I’m deep in light pollution, so viewing is best done with some travel. They have less magnification, but they’re as bright as a much more expensive telescope and there’s a certain value to having two eyes on the night sky.
10x50 is where I landed. Probably the same weight as your 7x50. While yes, the 50(mm) describes the outer objective lens, the key thing is really the lens on the eye side. Divide the aperture by the mag and you find that exit pupil size. 50/10=5mm, which is about the size of a dilated adult eyeball pupil - and they get smaller as you age. I’m guessing you have a Celestron or similar astro bino which has some advantages for this hobby. I am surprised at the ~$40 price tag, so I no longer want to recommend against it. Where I WAS going was that 7x35s would likely give a similar image from a reputable manufacturer while saving a little weight and being more likely to be found at a garage sale. But who could say no to $40 new 7x50s? As long as OP avoids those 20x50 boating binos or 10x25 hunting binos, they’ll be in good shape. My 10x50s are closer to OP’s budget because I opted for Nikon Action Extremes to survive my beach spot, hikes, travel, drops, and any other mishaps alike. Things go bump in the night so rubber coating and waterproofing was worth it to me
Fourth