Hi again Spangler, I haven't had any experience with the BT3000, the first saw I bought was the Ryobi BTS21
, admittedly the little brother of the BTS3000, and not a good replacement for the BTS20. Having said that I knew after the first cut that the BTS21 wasn't the TS for the stuff I had planned, (building shelving in garage, cabinets in garage, at least one bath vanity, outdoor furniture, planters, some simple furniture pieces and finally cabinets for the kitchen. Which doesn't include many other projects I have dreamed up. One of the main issues with the Ryobi saws, if your husband starts to take a real interest in building things, he will want to add accessories or jigs that any standard table saw would use, and he can't, notice the BT3000 has replaced the miter slot with a sliding table. The sliding table is nice for small pieces but as soon as you need to cut something large it becomes an obstacle. The fence will frustrate him because every time he has to move it he will have to calibrate it for accuracy. Plus the weight of that setup makes it difficult to cut large pieces, imagine trying cut a half sheet of plywood let alone a full sheet, on that saw.
Note that some people are very ingenious and can figure out how to make such a saw work for them in a variety of applications, however the extra effort & time necessary trying to figure out how to make something "get by" also produces lots of frustration, and that time and energy could have been better used actually building something easily with the right tool.
$400 you should be able to get a decent used real table saw, very stable, very expandable with either home made jigs and lots of store bought accessories, plus they are the standard for both hobby woodworkers and pros.