The Frenchman has so far been frustrated in his attempts to reinforce his squad this summer, with Napoli outspending the Gunners for Gonzalo Higuain, while Liverpool continue to hold firm over Luis Suarez.
And, after being asked about Madrid's potential world-record capture of the Welshman, Wenger wondered how clubs can continue to splash the cash despite Uefa's plans to curb spending.
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Arsenal have around £70m in transfer funds available to them this summer and sections of the club's support have grown restless that no big-name arrivals have come through the door of the Emirates Stadium so far.
Wenger, who has long been a target for criticism from some fans, admits he is feeling the heat.
"If you say we're under pressure to spend money, yes we are," he noted, "but I feel more under pressure to spend the money in the right way and that's what I'll try to do. We want to spend it if it strengthens our team. Just spending the money's not a quality.
"Spending the money, buying the right players, that's a quality, of course.
"If you can give me names who are better than the players we have, I am ready to talk about it."