Here's a story...
My first A/V system was a Kenwood home theater in a box kit. Typical crud speakers, typical low-end receiver. Not sure it was able to handle true surround sound even. But, it was my intro and I learned a lot. A couple of years later I had a few extra coins and decided to throw down for a top shelf receiver and some good speakers. Picked up about $3,000 in Definitive Technology speakers and a Yamaha receiver (this was 15 or so years ago). The speakers showed up about a month before the receiver did.
So, might as well hook them up and hear how they sound right?
Man oh man!!! The difference a quality set of speakers makes, even with an inexpensive receiver is just phenomenal. The speakers sounded so good I almost felt like cancelling my receiver purchase. In fact, I probably should have and just picked up a cheaper receiver to save some coin.
Moral of the story: Put your money into good speakers. Speakers which will last you 15 or 30 years. Something you like the sound of and that you will be stoked on for years to come. The price of the receiver is almost irrelevant to the discussion of speakers because the speakers themselves will be the ones that fill your room with great audio. Even if you have to purchase in increments, do so. Get the speakers that you want, the ones that make you happiest, and enjoy them forever and a day.