Lears are GREAT airplanes (I've got 3,000 hours in type), but before you get your heart set on one you really need to take a good hard look at insurance and training costs. (In order to be safe, you're going to need to attend some sort of simulator-based training basis on at least an annual basis. The insurance carrier may require that you and your friends attend refresher training semi-annually.) If those costs aren't "impressive" enough for you then check out the costs to get one RVSM certified. While you're at it, factor in the current and upcoming restrictions imposed by the noise levels. If you're still game, price out the fuel costs and finally don't forget that even though you can buy one comparatively inexpensively you're still going to maintain an OLD turbojet. (Expensive takes on a whole new meaning when you talk jet maintenance!) Some one mentioned a Citation good choice without nearly as many drawbacks.
Just my opinion.
The Jetlag Kid