Yes we do. Many of our existing customers are trying out different markets or need another workstation to handle additional seasonal sales for only a few months and have asked us whether they can rent a RetailEdge for the period rather than paying for a full workstation license.
Even though a secondary workstation license is only $225 and if you need a mobile workstation is it only $450 (Island), we have developed the ability to do this. If you are already running RetailEdge in your business and just want to add another workstation we can turn on a virtual dongle (software based) that will expire at the end of the rental time. Rentals are monthly only and are $50/machine/month. In addition any setup time that it takes will be charged at normal support rates ($30/15 minutes). So if you get everything ready or need little help then you won't need much, but if you need a lot of installation, printer setup etc, (some people do) then it will be more.
If you need equipment we can provide some of this for you as well. However cost of shipping equipment back and forth can quickly make this option less affordable and you might want to consider purchasing equipment instead. Having backup equipment for your primary workstations can be a good idea in some cases.