18v Cordless Drills

- Should I downgrade from my current drill/driver?
Two years ago, I bought a Makita 18V Compact Lithium-Ion Cordless 1/2 In. Driver-Drill Kit Model # BDF452HW for baby-proofing and furniture assembly. Now I don't use it much, although I feel that I would like a drill/driver on hand. I feel that the 18V drill-driver is more than I need. I'd like to downgrade to the Makita LCT203W 10.8-Volt Compact Lithium-Ion Two-Piece Combo Kit. The 18V drill kit includes a quick charger, an extra battery pack and a hard plastic carrying case. I bought drill bits from Walmart separately. The 2-piece driver-drill set that I want includes: driver drill, impact driver, two 10.8-volt lithium ion batteries, charger, and "heavy duty" aluminum case. Of course, the both tools in the 2-piece set have lower torque and max RPM than the 18V drill-driver, but I will have an impact driver in the exchange. Also the tools in the 2-piece set are smaller, which is more to my purpose (basic household maintenance). Should I sell the 18V (bought at $200 + tax), at a loss because it's used, and get the 2-piece set? I'm thinking $160 for the 18V and I'll throw in the drill bits. The 2-piece set is $160 shipped, from Amazon. (I'll need new bits, as the drill takes hex-shank bits.) Or should I keep the 18V, because you never know when you'll need the power? What do you think? The tools in the 2-piece set are less bulky than the 18V drill-driver. I foresee only light household drilling and screwdriving in the years to come.

A If you try to sell a used Drill then people will think its no good. You wont get a fair price. You'll regret ever starting the process. Drills of less than 12 Volts are just toys.Keep with the 18V. "If it aint broke dont fix it"