Do work, get 'em dirty, and it covers up the snot green.
I have at least a dozen Ryobi 18V tools, and I've been very happy with them. The brushless stuff is outstanding.
Crikey, I have a lot more than that... never counted before.
I think this is the more or less complete inventory... I'm getting a LOT done for a LOT less money than yella or red, and I'm sort of running out of Ryobi stuff to buy.
Milwaukee's M12 form factor is brilliant, and so I do have a few M12 lights and a screwdriver. I just bought a few more M12 batteries, and will be expanding that collection with tools where the M12 form factor makes a difference, like a 1/4" ratchet. Ryobi's battery form factor is a limitation at times, but honestly it's not really worse than any other 18/20V tool.
Brushless - there are tools where brushless makes a big difference:
Compact 1/4" impact driver
Compact 1/2" drill
Angle grinder
1/2" high torque impact
3/8" impact
Recip saw
Cutoff tool
Brushed; quite a few tools really don't need to be brushless. These brushed items work great, and cost less
Blower
String trimmer
Router
Jigsaw
6-1/2" circular saw
18GA nailer
Fan (can also run on an extension cord; brilliantly useful)
Inflator (my most-used by far)
Wet/dry shop vacuum (one of my other most-used tools)
Chainsaw
High volume "inflator" blower (a small pistol-shaped blower, inflates air mattresses and such)
Heat gun (surprisingly handy and capable)
And I have at least 10 or 12 batteries, about half of which are HP (these do make a difference in HP tools like the brushless angle grinder and 1/2" impact).
The following are sort of casually on my mental list, to be picked up if and as needed, or if a great deal pops up.
Glue gun
Sander(s) -- there are quite a few different sanders, polishers, etc.
Brushless oscillating tool (guybrator)
16GA nailer
Stick vacuum
Hammer drill
Soldering iron
Right angle die grinder
Right angle drill
Rotary cleaning brush tool
Rotary tool (Dremel-ish sort of thing, where the battery and motor sit in a base with a cable to the power head.)
All these and many, many more are either sitting on the shelf at the nearest Home Despot or within a day or two of delivery. And to me, that's a huge benefit as well.
Ryobi also has a new-ish "USB Lithium" line, which so far interests me not one iota. The tools just don't have nearly enough oomph, unless you're working on tiny things like models.