Several friends have congratulated me for my new Traeger...even as they tell me to keep the gas grill for burgers and steaks...how good are Traegers for cooking steaks?
I would concur with your friends' advice, with this minor modification: keep a charcoal grill around for steaks. Burgers are OK on a Traeger if you preheat it long enough.
The best way to improve a Traeger's ability to do steaks and burgers (short of modifying it for direct grilling) is to get yourself some GrillGrates. Big Poppa sells a couple of two-panel kits, cut to size for the MAK and Memphis smokers (19.25" x 10.375" and 17.25" x 10.375" respectively). Measure your Traeger and see what fits. If neither of those options work, check out the manufacturer's website.
When I added 6 GrillGrates to my old Traeger Model 125 (36" x 19"), I went from a surface temperature delta of 50°-60°F (from left to right) to 10°-20°F and the effective surface temperature increased by about 50°F (from the low 400s to the high 400s). That was enough for me to seriously improve the results of steaks on a Traeger. My favorite was to smoke a cowboy (a 2" thick, bone-in ribeye) to an IT of 110°-115°F, pull it, turn the Traeger up to max, and finish the cowboy to the desired IT.