Even the cheapest Skil 10" table saw is rated at 15-amps. At 120V, that's 2.4 hp. Compare it to a 3 hp cabinet saw and it's like the difference between a 60's Beetle and a modern Modena.
This is true, BUT, for the regular home user a sub $500 table saw is more than enough. I have a Ridgid 4512. It is heavy as hell, cast iron top, and has a stable base. At first I was worried about the 13 amp motor but when I asked a friend of a friend to give me a demo of his saw of that model, he showed me how it cut through a bit of Ebony like it was softwood. Effortless and clean cut.
What he did tell me was to use a higher end blade. I said "ya ya ya" and blew it off. When I tried the blade that came with the saw when I got one and it cut nothing like the one I saw demo'd. Then I got a proper carbide blade (Freud Diablo) and it is as good as a saw that I have seen.
Yes a bad ass commercial cabinet saw would make my saw look like a toy but it is made for commercial use (and priced as such). It is made to be running non-stop cutting woods of all type 8 hours a day without break. I use my saw a lot and it works perfectly. I can produce furniture with my saw as well as I could with any saw on earth...I just wouldn't want to burn out my saw mass producing furniture/cabinets, which is what a commercial cabinet saw is used for.
The note about technique above is key. Watch as many videos or relatives or neighbors as you can. And get the best blade you can afford. Keep in mind the blade is really the saw that does the business of the cut. The table, mitre, and circular/worm drive "saws" are really just there to spin the blade and create a surface for you to line up the blade to cut accurately (complete over simplification but the over all point is correct).
If you are looking to use the tool for a specific task and don't really have too much of a use for it after you are done, there is nothing wrong with borrowing/renting one (you can probably get a demo from whoever you are borrowing it from. I have bought a cheap power tool before (a mitre saw, in fact) and I used it until it wore out so I got value for it as a semi-disposable inexpensive tool.
Just some things to consider.
And use CAUTION. Power saws are witches and they WILL take your fingers if you let them. My friend's wife's dad is missing thumbs from two separate occasions....THUMBS! (I probably would have really favored my remaining thumb after the first accident, but somehow he didn't learn his lesson and is now essentially no longer a primate).