+1 to LeCroy and do you actually need it? Teks, Agilent, and Rohde & Schwarz tend to carry pretty high premiums even on the used market.
The big advantage of a scope is that you can look at a very wide bandwidth in realtime, but you do sacrifice detail for it (8 bits of resolution while similar spectrum analyzers can manage much better). If you're working with RF stuff and want to acquire data from it, you generally only need to be acquiring from a band, so the internal demodulation bandwidth of your SA or an external regular bandwidth scope on the IF output of the SA will give you all you really need.
Sampling is an option, but then you get the negatives of the scope's limited resolution with the extra restrictions of requiring repetitive signals, so some of the fault finding that you'd get from a very high bandwidth scope that you wouldn't get with an SA you wouldn't be able to see with a sampling scope (and you'd occasionally be able to see with an SA).
In any case, LeCroy has options to 2-3GHz that have standard high performance BNC inputs, beyond that their scopes (and many others') need special adapters to connect normal cables to, and high bandwidth probes are normally pretty expensive. Higher bandwidth also means easier to damage frontends, so it's common for very fast scopes not to even offer over 1-2V per division input range and for fast probes to be only up to +-4V or so plus some configurable DC offset.