I'm in a similar situation, and have been scouring the web to see if I can find a hidden gem of a scope in this price range. I'm sure this is basic info for you, but I'm finding that it all depends on what kind of viewing you want/need from your scope vs. how portable & convenient you want it to be.
I had a chance to use an Alpen 728 (Angled, 15-45x60) birding this weekend. Everyone was very impressed with the brightness and clarity of image at ~40x compared to the Swarovski, Leica, and Kowa scopes of various sizes others had. It can be found for ~$150 USD and has received some pretty solid reviews from lots of reliable sources. It also has the Alpen lifetime, no fault warranty - if you break it, they fix or replace it for life. Alpen also has a 20-60x60 angled scope for less than $200, but it's a different body, and I haven't had a chance to look through it.
I posted a thread here about a cheap scope/monopod setup I tried out to fill a gap between 10x40 glasses and a larger, heavier scope/tripod setup - something inexpensive, light, quick & easy to give me just a slightly better view than my field glasses when I don't have time for a tripod setup. After using it this weekend, I would agree with folks who say it's hard to hold steady enough on a monopod, and I'll be buying a Stedi-stock to give that a try before I look at other small scopes for this kind of use.
There are lots of posts here about other budget scopes that sound promising, but everyone has varying opinions about them, and I'm finding it to be true that nothing compares to actually looking through the scope and comparing it to other makes/models side by side - a difficult thing to do if you don't have a shop nearby.
I'm going to bring my mother in-law's Leica with manfrotto tripod & head to my local shop and compare the Alpen scopes of various sizes, especially at 40-60x. After seeing the quality of their small, inexpensive scope first hand this weekend, I'm confident that I'll be buying one of the bigger Alpen scopes for my tripod mounted scope.
Good luck, please post what you find out there - I'm still looking